R90.89 Other abnormal findings on diagnostic imaging of central nervous system

Billable ICD-10-CM code, FY2026.

Applicable to

• Other cerebrovascular abnormality found on diagnostic imaging of central nervous system

MS-DRG index

Defines the logic of DRG(s) 947-948 in MDC 23.

Approximate ICD-9-CM (GEMs)

• 793.99 Other nonspecific (abnormal) findings on radiological and other examinations of body structure (approximate)

Code annotations containing back-references to R90.89

Back-references to R90

• Type 1 Excludes: R22 Localized swelling, mass and lump of skin and subcutaneous tissue ("abnormal findings on diagnostic imaging (R90-R93)")

Diagnosis Index entries for R90.89

• Abnormal, abnormality, abnormalities › diagnostic imaging › central nervous system NEC
• Abnormal, abnormality, abnormalities › diagnostic imaging › cerebrovascular NEC

Nearby codes

• R90 Abnormal findings on diagnostic imaging of central nervous system
• R90.0 Intracranial space-occupying lesion found on diagnostic imaging of central nervous system
• R90.8 Other abnormal findings on diagnostic imaging of central nervous system
• R90.81 Abnormal echoencephalogram
• R90.82 White matter disease, unspecified
• R90.89 Other abnormal findings on diagnostic imaging of central nervous system (this code)