About Section R40-R46

Section R40-R46 covers Symptoms and signs involving cognition, perception, emotional state and behavior within Chapter 18 of the ICD-10-CM Tabular List. This section includes diagnosis codes ranging from R40 to R46. Each code below includes its description, billable status, and links to detailed coding guidelines.
Diagnosis Codes 97 entries
R40Somnolence, stupor and comaNon-Billable›R40.0SomnolenceBillable›R40.1StuporBillable›R40.2ComaNon-Billable›R40.20Unspecified comaBillable›R40.21Coma scale, eyes openNon-Billable›R40.211Coma scale, eyes open, neverBillable›R40.212Coma scale, eyes open, to painBillable›R40.213Coma scale, eyes open, to soundBillable›R40.214Coma scale, eyes open, spontaneousBillable›R40.22Coma scale, best verbal responseNon-Billable›R40.221Coma scale, best verbal response, noneBillable›R40.222Coma scale, best verbal response, incomprehensible wordsBillable›R40.223Coma scale, best verbal response, inappropriate wordsBillable›R40.224Coma scale, best verbal response, confused conversationBillable›R40.225Coma scale, best verbal response, orientedBillable›R40.23Coma scale, best motor responseNon-Billable›R40.231Coma scale, best motor response, noneBillable›R40.232Coma scale, best motor response, extensionBillable›R40.233Coma scale, best motor response, abnormal flexionBillable›R40.234Coma scale, best motor response, flexion withdrawalBillable›R40.235Coma scale, best motor response, localizes painBillable›R40.236Coma scale, best motor response, obeys commandsBillable›R40.24Glasgow coma scale, total scoreNon-Billable›R40.241Glasgow coma scale score 13-15Billable›R40.242Glasgow coma scale score 9-12Billable›R40.243Glasgow coma scale score 3-8Billable›R40.244Other coma, without documented Glasgow coma scale score, or with partial score reportedBillable›R40.2ANontraumatic coma due to underlying conditionBillable›R40.3Persistent vegetative stateBillable›R40.4Transient alteration of awarenessBillable›R41Other symptoms and signs involving cognitive functions and awarenessNon-Billable›R41.0Disorientation, unspecifiedBillable›R41.1Anterograde amnesiaBillable›R41.2Retrograde amnesiaBillable›R41.3Other amnesiaBillable›R41.4Neurologic neglect syndromeBillable›R41.8Other symptoms and signs involving cognitive functions and awarenessNon-Billable›R41.81Age-related cognitive declineBillable›R41.82Altered mental status, unspecifiedBillable›R41.83Borderline intellectual functioningBillable›R41.84Other specified cognitive deficitNon-Billable›R41.840Attention and concentration deficitBillable›R41.841Cognitive communication deficitBillable›R41.842Visuospatial deficitBillable›R41.843Psychomotor deficitBillable›R41.844Frontal lobe and executive function deficitBillable›R41.85AnosognosiaBillable›R41.89Other symptoms and signs involving cognitive functions and awarenessBillable›R41.9Unspecified symptoms and signs involving cognitive functions and awarenessBillable›R42Dizziness and giddinessBillable›R43Disturbances of smell and tasteNon-Billable›R43.0AnosmiaBillable›R43.1ParosmiaBillable›R43.2ParageusiaBillable›R43.8Other disturbances of smell and tasteBillable›R43.9Unspecified disturbances of smell and tasteBillable›R44Other symptoms and signs involving general sensations and perceptionsNon-Billable›R44.0Auditory hallucinationsBillable›R44.1Visual hallucinationsBillable›R44.2Other hallucinationsBillable›R44.3Hallucinations, unspecifiedBillable›R44.8Other symptoms and signs involving general sensations and perceptionsBillable›R44.9Unspecified symptoms and signs involving general sensations and perceptionsBillable›R45Symptoms and signs involving emotional stateNon-Billable›R45.0NervousnessBillable›R45.1Restlessness and agitationBillable›R45.2UnhappinessBillable›R45.3Demoralization and apathyBillable›R45.4Irritability and angerBillable›R45.5HostilityBillable›R45.6Violent behaviorBillable›R45.7State of emotional shock and stress, unspecifiedBillable›R45.8Other symptoms and signs involving emotional stateNon-Billable›R45.81Low self-esteemBillable›R45.82WorriesBillable›R45.83Excessive crying of child, adolescent or adultBillable›R45.84AnhedoniaBillable›R45.85Homicidal and suicidal ideationsNon-Billable›R45.850Homicidal ideationsBillable›R45.851Suicidal ideationsBillable›R45.86Emotional labilityBillable›R45.87ImpulsivenessBillable›R45.88Nonsuicidal self-harmBillable›R45.89Other symptoms and signs involving emotional stateBillable›R46Symptoms and signs involving appearance and behaviorNon-Billable›R46.0Very low level of personal hygieneBillable›R46.1Bizarre personal appearanceBillable›R46.2Strange and inexplicable behaviorBillable›R46.3OveractivityBillable›R46.4Slowness and poor responsivenessBillable›R46.5Suspiciousness and marked evasivenessBillable›R46.6Undue concern and preoccupation with stressful eventsBillable›R46.7Verbosity and circumstantial detail obscuring reason for contactBillable›R46.8Other symptoms and signs involving appearance and behaviorNon-Billable›R46.81Obsessive-compulsive behaviorBillable›R46.89Other symptoms and signs involving appearance and behaviorBillable›