About Section Y90-Y99

Section Y90-Y99 covers Supplementary factors related to causes of morbidity classified elsewhere within Chapter 20 of the ICD-10-CM Tabular List. This section includes diagnosis codes ranging from Y90 to Y99. Each code below includes its description, billable status, and links to detailed coding guidelines.

Diagnosis Codes 396 entries
Y90Evidence of alcohol involvement determined by blood alcohol levelNon-BillableY90.0Blood alcohol level of less than 20 mg/100 mlBillableY90.1Blood alcohol level of 20-39 mg/100 mlBillableY90.2Blood alcohol level of 40-59 mg/100 mlBillableY90.3Blood alcohol level of 60-79 mg/100 mlBillableY90.4Blood alcohol level of 80-99 mg/100 mlBillableY90.5Blood alcohol level of 100-119 mg/100 mlBillableY90.6Blood alcohol level of 120-199 mg/100 mlBillableY90.7Blood alcohol level of 200-239 mg/100 mlBillableY90.8Blood alcohol level of 240 mg/100 ml or moreBillableY90.9Presence of alcohol in blood, level not specifiedBillableY92Place of occurrence of the external causeNon-BillableY92.0Non-institutional (private) residence as the place of occurrence of the external causeNon-BillableY92.00Unspecified non-institutional (private) residence as the place of occurrence of the external causeNon-BillableY92.000Kitchen of unspecified non-institutional (private) residence as the place of occurrence of the external causeBillableY92.001Dining room of unspecified non-institutional (private) residence as the place of occurrence of the external causeBillableY92.002Bathroom of unspecified non-institutional (private) residence as the place of occurrence of the external causeBillableY92.003Bedroom of unspecified non-institutional (private) residence as the place of occurrence of the external causeBillableY92.007Garden or yard of unspecified non-institutional (private) residence as the place of occurrence of the external causeBillableY92.008Other place in unspecified non-institutional (private) residence as the place of occurrence of the external causeBillableY92.009Unspecified place in unspecified non-institutional (private) residence as the place of occurrence of the external causeBillableY92.01Single-family non-institutional (private) house as the place of occurrence of the external causeNon-BillableY92.010Kitchen of single-family (private) house as the place of occurrence of the external causeBillableY92.011Dining room of single-family (private) house as the place of occurrence of the external causeBillableY92.012Bathroom of single-family (private) house as the place of occurrence of the external causeBillableY92.013Bedroom of single-family (private) house as the place of occurrence of the external causeBillableY92.014Private driveway to single-family (private) house as the place of occurrence of the external causeBillableY92.015Private garage of single-family (private) house as the place of occurrence of the external causeBillableY92.016Swimming-pool in single-family (private) house or garden as the place of occurrence of the external causeBillableY92.017Garden or yard in single-family (private) house as the place of occurrence of the external causeBillableY92.018Other place in single-family (private) house as the place of occurrence of the external causeBillableY92.019Unspecified place in single-family (private) house as the place of occurrence of the external causeBillableY92.02Mobile home as the place of occurrence of the external causeNon-BillableY92.020Kitchen in mobile home as the place of occurrence of the external causeBillableY92.021Dining room in mobile home as the place of occurrence of the external causeBillableY92.022Bathroom in mobile home as the place of occurrence of the external causeBillableY92.023Bedroom in mobile home as the place of occurrence of the external causeBillableY92.024Driveway of mobile home as the place of occurrence of the external causeBillableY92.025Garage of mobile home as the place of occurrence of the external causeBillableY92.026Swimming-pool of mobile home as the place of occurrence of the external causeBillableY92.027Garden or yard of mobile home as the place of occurrence of the external causeBillableY92.028Other place in mobile home as the place of occurrence of the external causeBillableY92.029Unspecified place in mobile home as the place of occurrence of the external causeBillableY92.03Apartment as the place of occurrence of the external causeNon-BillableY92.030Kitchen in apartment as the place of occurrence of the external causeBillableY92.031Bathroom in apartment as the place of occurrence of the external causeBillableY92.032Bedroom in apartment as the place of occurrence of the external causeBillableY92.038Other place in apartment as the place of occurrence of the external causeBillableY92.039Unspecified place in apartment as the place of occurrence of the external causeBillableY92.04Boarding-house as the place of occurrence of the external causeNon-BillableY92.040Kitchen in boarding-house as the place of occurrence of the external causeBillableY92.041Bathroom in boarding-house as the place of occurrence of the external causeBillableY92.042Bedroom in boarding-house as the place of occurrence of the external causeBillableY92.043Driveway of boarding-house as the place of occurrence of the external causeBillableY92.044Garage of boarding-house as the place of occurrence of the external causeBillableY92.045Swimming-pool of boarding-house as the place of occurrence of the external causeBillableY92.046Garden or yard of boarding-house as the place of occurrence of the external causeBillableY92.048Other place in boarding-house as the place of occurrence of the external causeBillableY92.049Unspecified place in boarding-house as the place of occurrence of the external causeBillableY92.09Other non-institutional residence as the place of occurrence of the external causeNon-BillableY92.090Kitchen in other non-institutional residence as the place of occurrence of the external causeBillableY92.091Bathroom in other non-institutional residence as the place of occurrence of the external causeBillableY92.092Bedroom in other non-institutional residence as the place of occurrence of the external causeBillableY92.093Driveway of other non-institutional residence as the place of occurrence of the external causeBillableY92.094Garage of other non-institutional residence as the place of occurrence of the external causeBillableY92.095Swimming-pool of other non-institutional residence as the place of occurrence of the external causeBillableY92.096Garden or yard of other non-institutional residence as the place of occurrence of the external causeBillableY92.098Other place in other non-institutional residence as the place of occurrence of the external causeBillableY92.099Unspecified place in other non-institutional residence as the place of occurrence of the external causeBillableY92.1Institutional (nonprivate) residence as the place of occurrence of the external causeNon-BillableY92.10Unspecified residential institution as the place of occurrence of the external causeBillableY92.11Children's home and orphanage as the place of occurrence of the external causeNon-BillableY92.110Kitchen in children's home and orphanage as the place of occurrence of the external causeBillableY92.111Bathroom in children's home and orphanage as the place of occurrence of the external causeBillableY92.112Bedroom in children's home and orphanage as the place of occurrence of the external causeBillableY92.113Driveway of children's home and orphanage as the place of occurrence of the external causeBillableY92.114Garage of children's home and orphanage as the place of occurrence of the external causeBillableY92.115Swimming-pool of children's home and orphanage as the place of occurrence of the external causeBillableY92.116Garden or yard of children's home and orphanage as the place of occurrence of the external causeBillableY92.118Other place in children's home and orphanage as the place of occurrence of the external causeBillableY92.119Unspecified place in children's home and orphanage as the place of occurrence of the external causeBillableY92.12Nursing home as the place of occurrence of the external causeNon-BillableY92.120Kitchen in nursing home as the place of occurrence of the external causeBillableY92.121Bathroom in nursing home as the place of occurrence of the external causeBillableY92.122Bedroom in nursing home as the place of occurrence of the external causeBillableY92.123Driveway of nursing home as the place of occurrence of the external causeBillableY92.124Garage of nursing home as the place of occurrence of the external causeBillableY92.125Swimming-pool of nursing home as the place of occurrence of the external causeBillableY92.126Garden or yard of nursing home as the place of occurrence of the external causeBillableY92.128Other place in nursing home as the place of occurrence of the external causeBillableY92.129Unspecified place in nursing home as the place of occurrence of the external causeBillableY92.13Military base as the place of occurrence of the external causeNon-BillableY92.130Kitchen on military base as the place of occurrence of the external causeBillableY92.131Mess hall on military base as the place of occurrence of the external causeBillableY92.133Barracks on military base as the place of occurrence of the external causeBillableY92.135Garage on military base as the place of occurrence of the external causeBillableY92.136Swimming-pool on military base as the place of occurrence of the external causeBillableY92.137Garden or yard on military base as the place of occurrence of the external causeBillableY92.138Other place on military base as the place of occurrence of the external causeBillableY92.139Unspecified place military base as the place of occurrence of the external causeBillableY92.14Prison as the place of occurrence of the external causeNon-BillableY92.140Kitchen in prison as the place of occurrence of the external causeBillableY92.141Dining room in prison as the place of occurrence of the external causeBillableY92.142Bathroom in prison as the place of occurrence of the external causeBillableY92.143Cell of prison as the place of occurrence of the external causeBillableY92.146Swimming-pool of prison as the place of occurrence of the external causeBillableY92.147Courtyard of prison as the place of occurrence of the external causeBillableY92.148Other place in prison as the place of occurrence of the external causeBillableY92.149Unspecified place in prison as the place of occurrence of the external causeBillableY92.15Reform school as the place of occurrence of the external causeNon-BillableY92.150Kitchen in reform school as the place of occurrence of the external causeBillableY92.151Dining room in reform school as the place of occurrence of the external causeBillableY92.152Bathroom in reform school as the place of occurrence of the external causeBillableY92.153Bedroom in reform school as the place of occurrence of the external causeBillableY92.154Driveway of reform school as the place of occurrence of the external causeBillableY92.155Garage of reform school as the place of occurrence of the external causeBillableY92.156Swimming-pool of reform school as the place of occurrence of the external causeBillableY92.157Garden or yard of reform school as the place of occurrence of the external causeBillableY92.158Other place in reform school as the place of occurrence of the external causeBillableY92.159Unspecified place in reform school as the place of occurrence of the external causeBillableY92.16School dormitory as the place of occurrence of the external causeNon-BillableY92.160Kitchen in school dormitory as the place of occurrence of the external causeBillableY92.161Dining room in school dormitory as the place of occurrence of the external causeBillableY92.162Bathroom in school dormitory as the place of occurrence of the external causeBillableY92.163Bedroom in school dormitory as the place of occurrence of the external causeBillableY92.168Other place in school dormitory as the place of occurrence of the external causeBillableY92.169Unspecified place in school dormitory as the place of occurrence of the external causeBillableY92.19Other specified residential institution as the place of occurrence of the external causeNon-BillableY92.190Kitchen in other specified residential institution as the place of occurrence of the external causeBillableY92.191Dining room in other specified residential institution as the place of occurrence of the external causeBillableY92.192Bathroom in other specified residential institution as the place of occurrence of the external causeBillableY92.193Bedroom in other specified residential institution as the place of occurrence of the external causeBillableY92.194Driveway of other specified residential institution as the place of occurrence of the external causeBillableY92.195Garage of other specified residential institution as the place of occurrence of the external causeBillableY92.196Pool of other specified residential institution as the place of occurrence of the external causeBillableY92.197Garden or yard of other specified residential institution as the place of occurrence of the external causeBillableY92.198Other place in other specified residential institution as the place of occurrence of the external causeBillableY92.199Unspecified place in other specified residential institution as the place of occurrence of the external causeBillableY92.2School, other institution and public administrative area as the place of occurrence of the external causeNon-BillableY92.21School (private) (public) (state) as the place of occurrence of the external causeNon-BillableY92.210Daycare center as the place of occurrence of the external causeBillableY92.211Elementary school as the place of occurrence of the external causeBillableY92.212Middle school as the place of occurrence of the external causeBillableY92.213High school as the place of occurrence of the external causeBillableY92.214College as the place of occurrence of the external causeBillableY92.215Trade school as the place of occurrence of the external causeBillableY92.218Other school as the place of occurrence of the external causeBillableY92.219Unspecified school as the place of occurrence of the external causeBillableY92.22Religious institution as the place of occurrence of the external causeBillableY92.23Hospital as the place of occurrence of the external causeNon-BillableY92.230Patient room in hospital as the place of occurrence of the external causeBillableY92.231Patient bathroom in hospital as the place of occurrence of the external causeBillableY92.232Corridor of hospital as the place of occurrence of the external causeBillableY92.233Cafeteria of hospital as the place of occurrence of the external causeBillableY92.234Operating room of hospital as the place of occurrence of the external causeBillableY92.238Other place in hospital as the place of occurrence of the external causeBillableY92.239Unspecified place in hospital as the place of occurrence of the external causeBillableY92.24Public administrative building as the place of occurrence of the external causeNon-BillableY92.240Courthouse as the place of occurrence of the external causeBillableY92.241Library as the place of occurrence of the external causeBillableY92.242Post office as the place of occurrence of the external causeBillableY92.243City hall as the place of occurrence of the external causeBillableY92.248Other public administrative building as the place of occurrence of the external causeBillableY92.25Cultural building as the place of occurrence of the external causeNon-BillableY92.250Art Gallery as the place of occurrence of the external causeBillableY92.251Museum as the place of occurrence of the external causeBillableY92.252Music hall as the place of occurrence of the external causeBillableY92.253Opera house as the place of occurrence of the external causeBillableY92.254Theater (live) as the place of occurrence of the external causeBillableY92.258Other cultural public building as the place of occurrence of the external causeBillableY92.26Movie house or cinema as the place of occurrence of the external causeBillableY92.29Other specified public building as the place of occurrence of the external causeBillableY92.3Sports and athletics area as the place of occurrence of the external causeNon-BillableY92.31Athletic court as the place of occurrence of the external causeNon-BillableY92.310Basketball court as the place of occurrence of the external causeBillableY92.311Squash court as the place of occurrence of the external causeBillableY92.312Tennis court as the place of occurrence of the external causeBillableY92.318Other athletic court as the place of occurrence of the external causeBillableY92.32Athletic field as the place of occurrence of the external causeNon-BillableY92.320Baseball field as the place of occurrence of the external causeBillableY92.321Football field as the place of occurrence of the external causeBillableY92.322Soccer field as the place of occurrence of the external causeBillableY92.328Other athletic field as the place of occurrence of the external causeBillableY92.33Skating rink as the place of occurrence of the external causeNon-BillableY92.330Ice skating rink (indoor) (outdoor) as the place of occurrence of the external causeBillableY92.331Roller skating rink as the place of occurrence of the external causeBillableY92.34Swimming pool (public) as the place of occurrence of the external causeBillableY92.39Other specified sports and athletic area as the place of occurrence of the external causeBillableY92.4Street, highway and other paved roadways as the place of occurrence of the external causeNon-BillableY92.41Street and highway as the place of occurrence of the external causeNon-BillableY92.410Unspecified street and highway as the place of occurrence of the external causeBillableY92.411Interstate highway as the place of occurrence of the external causeBillableY92.412Parkway as the place of occurrence of the external causeBillableY92.413State road as the place of occurrence of the external causeBillableY92.414Local residential or business street as the place of occurrence of the external causeBillableY92.415Exit ramp or entrance ramp of street or highway as the place of occurrence of the external causeBillableY92.48Other paved roadways as the place of occurrence of the external causeNon-BillableY92.480Sidewalk as the place of occurrence of the external causeBillableY92.481Parking lot as the place of occurrence of the external causeBillableY92.482Bike path as the place of occurrence of the external causeBillableY92.488Other paved roadways as the place of occurrence of the external causeBillableY92.5Trade and service area as the place of occurrence of the external causeNon-BillableY92.51Private commercial establishments as the place of occurrence of the external causeNon-BillableY92.510Bank as the place of occurrence of the external causeBillableY92.511Restaurant or café as the place of occurrence of the external causeBillableY92.512Supermarket, store or market as the place of occurrence of the external causeBillableY92.513Shop (commercial) as the place of occurrence of the external causeBillableY92.52Service areas as the place of occurrence of the external causeNon-BillableY92.520Airport as the place of occurrence of the external causeBillableY92.521Bus station as the place of occurrence of the external causeBillableY92.522Railway station as the place of occurrence of the external causeBillableY92.523Highway rest stop as the place of occurrence of the external causeBillableY92.524Gas station as the place of occurrence of the external causeBillableY92.53Ambulatory health services establishments as the place of occurrence of the external causeNon-BillableY92.530Ambulatory surgery center as the place of occurrence of the external causeBillableY92.531Health care provider office as the place of occurrence of the external causeBillableY92.532Urgent care center as the place of occurrence of the external causeBillableY92.538Other ambulatory health services establishments as the place of occurrence of the external causeBillableY92.59Other trade areas as the place of occurrence of the external causeBillableY92.6Industrial and construction area as the place of occurrence of the external causeNon-BillableY92.61Building [any] under construction as the place of occurrence of the external causeBillableY92.62Dock or shipyard as the place of occurrence of the external causeBillableY92.63Factory as the place of occurrence of the external causeBillableY92.64Mine or pit as the place of occurrence of the external causeBillableY92.65Oil rig as the place of occurrence of the external causeBillableY92.69Other specified industrial and construction area as the place of occurrence of the external causeBillableY92.7Farm as the place of occurrence of the external causeNon-BillableY92.71Barn as the place of occurrence of the external causeBillableY92.72Chicken coop as the place of occurrence of the external causeBillableY92.73Farm field as the place of occurrence of the external causeBillableY92.74Orchard as the place of occurrence of the external causeBillableY92.79Other farm location as the place of occurrence of the external causeBillableY92.8Other places as the place of occurrence of the external causeNon-BillableY92.81Transport vehicle as the place of occurrence of the external causeNon-BillableY92.810Car as the place of occurrence of the external causeBillableY92.811Bus as the place of occurrence of the external causeBillableY92.812Truck as the place of occurrence of the external causeBillableY92.813Airplane as the place of occurrence of the external causeBillableY92.814Boat as the place of occurrence of the external causeBillableY92.815Train as the place of occurrence of the external causeBillableY92.816Subway car as the place of occurrence of the external causeBillableY92.818Other transport vehicle as the place of occurrence of the external causeBillableY92.82Wilderness areaNon-BillableY92.820Desert as the place of occurrence of the external causeBillableY92.821Forest as the place of occurrence of the external causeBillableY92.828Other wilderness area as the place of occurrence of the external causeBillableY92.83Recreation area as the place of occurrence of the external causeNon-BillableY92.830Public park as the place of occurrence of the external causeBillableY92.831Amusement park as the place of occurrence of the external causeBillableY92.832Beach as the place of occurrence of the external causeBillableY92.833Campsite as the place of occurrence of the external causeBillableY92.834Zoological garden (Zoo) as the place of occurrence of the external causeBillableY92.838Other recreation area as the place of occurrence of the external causeBillableY92.84Military training ground as the place of occurrence of the external causeBillableY92.85Railroad track as the place of occurrence of the external causeBillableY92.86Slaughter house as the place of occurrence of the external causeBillableY92.89Other specified places as the place of occurrence of the external causeBillableY92.9Unspecified place or not applicableBillableY93Activity codesNon-BillableY93.0Activities involving walking and runningNon-BillableY93.01Activity, walking, marching and hikingBillableY93.02Activity, runningBillableY93.1Activities involving water and water craftNon-BillableY93.11Activity, swimmingBillableY93.12Activity, springboard and platform divingBillableY93.13Activity, water poloBillableY93.14Activity, water aerobics and water exerciseBillableY93.15Activity, underwater diving and snorkelingBillableY93.16Activity, rowing, canoeing, kayaking, rafting and tubingBillableY93.17Activity, water skiing and wake boardingBillableY93.18Activity, surfing, windsurfing and boogie boardingBillableY93.19Activity, other involving water and watercraftBillableY93.2Activities involving ice and snowNon-BillableY93.21Activity, ice skatingBillableY93.22Activity, ice hockeyBillableY93.23Activity, snow (alpine) (downhill) skiing, snowboarding, sledding, tobogganing and snow tubingBillableY93.24Activity, cross country skiingBillableY93.29Activity, other involving ice and snowBillableY93.3Activities involving climbing, rappelling and jumping offNon-BillableY93.31Activity, mountain climbing, rock climbing and wall climbingBillableY93.32Activity, rappellingBillableY93.33Activity, BASE jumpingBillableY93.34Activity, bungee jumpingBillableY93.35Activity, hang glidingBillableY93.39Activity, other involving climbing, rappelling and jumping offBillableY93.4Activities involving dancing and other rhythmic movementNon-BillableY93.41Activity, dancingBillableY93.42Activity, yogaBillableY93.43Activity, gymnasticsBillableY93.44Activity, trampoliningBillableY93.45Activity, cheerleadingBillableY93.49Activity, other involving dancing and other rhythmic movementsBillableY93.5Activities involving other sports and athletics played individuallyNon-BillableY93.51Activity, roller skating (inline) and skateboardingBillableY93.52Activity, horseback ridingBillableY93.53Activity, golfBillableY93.54Activity, bowlingBillableY93.55Activity, bike ridingBillableY93.56Activity, jumping ropeBillableY93.57Activity, non-running track and field eventsBillableY93.59Activity, other involving other sports and athletics played individuallyBillableY93.6Activities involving other sports and athletics played as a team or groupNon-BillableY93.61Activity, american tackle footballBillableY93.62Activity, american flag or touch footballBillableY93.63Activity, rugbyBillableY93.64Activity, baseballBillableY93.65Activity, lacrosse and field hockeyBillableY93.66Activity, soccerBillableY93.67Activity, basketballBillableY93.68Activity, volleyball (beach) (court)BillableY93.69Activity, other involving other sports and athletics played as a team or groupBillableY93.6AActivity, physical games generally associated with school recess, summer camp and childrenBillableY93.7Activities involving other specified sports and athleticsNon-BillableY93.71Activity, boxingBillableY93.72Activity, wrestlingBillableY93.73Activity, racquet and hand sportsBillableY93.74Activity, frisbeeBillableY93.75Activity, martial artsBillableY93.79Activity, other specified sports and athleticsBillableY93.8Activities, other specifiedNon-BillableY93.81Activity, refereeing a sports activityBillableY93.82Activity, spectator at an eventBillableY93.83Activity, rough housing and horseplayBillableY93.84Activity, sleepingBillableY93.85Activity, choking gameBillableY93.89Activity, other specifiedBillableY93.9Activity, unspecifiedBillableY93.AActivities involving other cardiorespiratory exerciseNon-BillableY93.A1Activity, exercise machines primarily for cardiorespiratory conditioningBillableY93.A2Activity, calisthenicsBillableY93.A3Activity, aerobic and step exerciseBillableY93.A4Activity, circuit trainingBillableY93.A5Activity, obstacle courseBillableY93.A6Activity, grass drillsBillableY93.A9Activity, other involving cardiorespiratory exerciseBillableY93.BActivities involving other muscle strengthening exercisesNon-BillableY93.B1Activity, exercise machines primarily for muscle strengtheningBillableY93.B2Activity, push-ups, pull-ups, sit-upsBillableY93.B3Activity, free weightsBillableY93.B4Activity, pilatesBillableY93.B9Activity, other involving muscle strengthening exercisesBillableY93.CActivities involving computer technology and electronic devicesNon-BillableY93.C1Activity, computer keyboardingBillableY93.C2Activity, hand held interactive electronic deviceBillableY93.C9Activity, other involving computer technology and electronic devicesBillableY93.DActivities involving arts and handcraftsNon-BillableY93.D1Activity, knitting and crochetingBillableY93.D2Activity, sewingBillableY93.D3Activity, furniture building and finishingBillableY93.D9Activity, other involving arts and handcraftsBillableY93.EActivities involving personal hygiene and interior property and clothing maintenanceNon-BillableY93.E1Activity, personal bathing and showeringBillableY93.E2Activity, laundryBillableY93.E3Activity, vacuumingBillableY93.E4Activity, ironingBillableY93.E5Activity, floor mopping and cleaningBillableY93.E6Activity, residential relocationBillableY93.E8Activity, other personal hygieneBillableY93.E9Activity, other interior property and clothing maintenanceBillableY93.FActivities involving caregivingNon-BillableY93.F1Activity, caregiving, bathingBillableY93.F2Activity, caregiving, liftingBillableY93.F9Activity, other caregivingBillableY93.GActivities involving food preparation, cooking and grillingNon-BillableY93.G1Activity, food preparation and clean upBillableY93.G2Activity, grilling and smoking foodBillableY93.G3Activity, cooking and bakingBillableY93.G9Activity, other involving cooking and grillingBillableY93.HActivities involving exterior property and land maintenance, building and constructionNon-BillableY93.H1Activity, digging, shoveling and rakingBillableY93.H2Activity, gardening and landscapingBillableY93.H3Activity, building and constructionBillableY93.H9Activity, other involving exterior property and land maintenance, building and constructionBillableY93.IActivities involving roller coasters and other types of external motionNon-BillableY93.I1Activity, roller coaster ridingBillableY93.I9Activity, other involving external motionBillableY93.JActivities involving playing musical instrumentNon-BillableY93.J1Activity, piano playingBillableY93.J2Activity, drum and other percussion instrument playingBillableY93.J3Activity, string instrument playingBillableY93.J4Activity, winds and brass instrument playingBillableY93.KActivities involving animal careNon-BillableY93.K1Activity, walking an animalBillableY93.K2Activity, milking an animalBillableY93.K3Activity, grooming and shearing an animalBillableY93.K9Activity, other involving animal careBillableY93.LOther outdoor activityNon-BillableY93.L1Activity, splitting woodBillableY93.L9Activity, other outdoor activityBillableY95Nosocomial conditionBillableY99External cause statusNon-BillableY99.0Civilian activity done for income or payBillableY99.1Military activityBillableY99.2Volunteer activityBillableY99.8Other external cause statusBillableY99.9Unspecified external cause statusBillable