About Section R90-R94

Section R90-R94 covers Abnormal findings on diagnostic imaging and in function studies, without diagnosis within Chapter 18 of the ICD-10-CM Tabular List. This section includes diagnosis codes ranging from R90 to R94. Each code below includes its description, billable status, and links to detailed coding guidelines.
Diagnosis Codes 85 entries
R90Abnormal findings on diagnostic imaging of central nervous systemNon-Billable›R90.0Intracranial space-occupying lesion found on diagnostic imaging of central nervous systemBillable›R90.8Other abnormal findings on diagnostic imaging of central nervous systemNon-Billable›R90.81Abnormal echoencephalogramBillable›R90.82White matter disease, unspecifiedBillable›R90.89Other abnormal findings on diagnostic imaging of central nervous systemBillable›R91Abnormal findings on diagnostic imaging of lungNon-Billable›R91.1Solitary pulmonary noduleBillable›R91.8Other nonspecific abnormal finding of lung fieldBillable›R92Abnormal and inconclusive findings on diagnostic imaging of breastNon-Billable›R92.0Mammographic microcalcification found on diagnostic imaging of breastBillable›R92.1Mammographic calcification found on diagnostic imaging of breastBillable›R92.2Inconclusive mammogramBillable›R92.3Mammographic density found on imaging of breastNon-Billable›R92.30Dense breasts, unspecifiedBillable›R92.31Mammographic fatty tissue density of breastNon-Billable›R92.311Mammographic fatty tissue density, right breastBillable›R92.312Mammographic fatty tissue density, left breastBillable›R92.313Mammographic fatty tissue density, bilateral breastsBillable›R92.32Mammographic fibroglandular density of breastNon-Billable›R92.321Mammographic fibroglandular density, right breastBillable›R92.322Mammographic fibroglandular density, left breastBillable›R92.323Mammographic fibroglandular density, bilateral breastsBillable›R92.33Mammographic heterogeneous density of breastNon-Billable›R92.331Mammographic heterogeneous density, right breastBillable›R92.332Mammographic heterogeneous density, left breastBillable›R92.333Mammographic heterogeneous density, bilateral breastsBillable›R92.34Mammographic extreme density of breastNon-Billable›R92.341Mammographic extreme density, right breastBillable›R92.342Mammographic extreme density, left breastBillable›R92.343Mammographic extreme density, bilateral breastsBillable›R92.8Other abnormal and inconclusive findings on diagnostic imaging of breastBillable›R93Abnormal findings on diagnostic imaging of other body structuresNon-Billable›R93.0Abnormal findings on diagnostic imaging of skull and head, not elsewhere classifiedBillable›R93.1Abnormal findings on diagnostic imaging of heart and coronary circulationBillable›R93.2Abnormal findings on diagnostic imaging of liver and biliary tractBillable›R93.3Abnormal findings on diagnostic imaging of other parts of digestive tractBillable›R93.4Abnormal findings on diagnostic imaging of urinary organsNon-Billable›R93.41Abnormal radiologic findings on diagnostic imaging of renal pelvis, ureter, or bladderBillable›R93.42Abnormal radiologic findings on diagnostic imaging of kidneyNon-Billable›R93.421Abnormal radiologic findings on diagnostic imaging of right kidneyBillable›R93.422Abnormal radiologic findings on diagnostic imaging of left kidneyBillable›R93.429Abnormal radiologic findings on diagnostic imaging of unspecified kidneyBillable›R93.49Abnormal radiologic findings on diagnostic imaging of other urinary organsBillable›R93.5Abnormal findings on diagnostic imaging of other abdominal regions, including retroperitoneumBillable›R93.6Abnormal findings on diagnostic imaging of limbsBillable›R93.7Abnormal findings on diagnostic imaging of other parts of musculoskeletal systemBillable›R93.8Abnormal findings on diagnostic imaging of other specified body structuresNon-Billable›R93.81Abnormal radiologic findings on diagnostic imaging of testisNon-Billable›R93.811Abnormal radiologic findings on diagnostic imaging of right testicleBillable›R93.812Abnormal radiologic findings on diagnostic imaging of left testicleBillable›R93.813Abnormal radiologic findings on diagnostic imaging of testicles, bilateralBillable›R93.819Abnormal radiologic findings on diagnostic imaging of unspecified testicleBillable›R93.89Abnormal findings on diagnostic imaging of other specified body structuresBillable›R93.9Diagnostic imaging inconclusive due to excess body fat of patientBillable›R94Abnormal results of function studiesNon-Billable›R94.0Abnormal results of function studies of central nervous systemNon-Billable›R94.01Abnormal electroencephalogram [EEG]Billable›R94.02Abnormal brain scanBillable›R94.09Abnormal results of other function studies of central nervous systemBillable›R94.1Abnormal results of function studies of peripheral nervous system and special sensesNon-Billable›R94.11Abnormal results of function studies of eyeNon-Billable›R94.110Abnormal electro-oculogram [EOG]Billable›R94.111Abnormal electroretinogram [ERG]Billable›R94.112Abnormal visually evoked potential [VEP]Billable›R94.113Abnormal oculomotor studyBillable›R94.118Abnormal results of other function studies of eyeBillable›R94.12Abnormal results of function studies of ear and other special sensesNon-Billable›R94.120Abnormal auditory function studyBillable›R94.121Abnormal vestibular function studyBillable›R94.128Abnormal results of other function studies of ear and other special sensesBillable›R94.13Abnormal results of function studies of peripheral nervous systemNon-Billable›R94.130Abnormal response to nerve stimulation, unspecifiedBillable›R94.131Abnormal electromyogram [EMG]Billable›R94.138Abnormal results of other function studies of peripheral nervous systemBillable›R94.2Abnormal results of pulmonary function studiesBillable›R94.3Abnormal results of cardiovascular function studiesNon-Billable›R94.30Abnormal result of cardiovascular function study, unspecifiedBillable›R94.31Abnormal electrocardiogram [ECG] [EKG]Billable›R94.39Abnormal result of other cardiovascular function studyBillable›R94.4Abnormal results of kidney function studiesBillable›R94.5Abnormal results of liver function studiesBillable›R94.6Abnormal results of thyroid function studiesBillable›R94.7Abnormal results of other endocrine function studiesBillable›R94.8Abnormal results of function studies of other organs and systemsBillable›