R90.89 is the authoritative medical code for Other abnormal findings on diagnostic imaging of central nervous system. This classification is used in medical billing and clinical recording to specify the clinical criteria for other abnormal findings on diagnostic imaging of central nervous system (ICD-10-CM R90.89), ensuring healthcare documentation aligns with 2026 federal coding standards.
Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.
Official Registry Overview & Definition
Other abnormal findings on diagnostic imaging of central nervous system is a billable ICD-10-CM diagnosis code R90.89. Includes: nonspecific abnormal findings on diagnostic imaging by computerized axial tomography CAT scan; nonspecific abnormal findings on diagnostic imaging by magnetic resonance imaging MRINMR; nonspecific abnormal findings on diagnostic imaging by positron emission tomography PET scan; nonspecific abnormal findings on diagnostic imaging by thermography; nonspecific abnormal findings on diagnostic imaging by ultrasound echogram; nonspecific abnormal findings on diagnostic imaging by X-ray examination. Inclusion terms: Other cerebrovascular abnormality found on diagnostic imaging of central nervous system. Excludes1 (not coded here): abnormal findings on antenatal screening of mother O28.-; diagnostic abnormal findings classified elsewhere - see Alphabetical Index.
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for R90.89 in the official ICD-10-CM tabular list.
Includes
Conditions the official ICD-10-CM tabular list includes under this code.
- nonspecific abnormal findings on diagnostic imaging by computerized axial tomography CAT scan
- nonspecific abnormal findings on diagnostic imaging by magnetic resonance imaging MRINMR
- nonspecific abnormal findings on diagnostic imaging by positron emission tomography PET scan
- nonspecific abnormal findings on diagnostic imaging by thermography
- nonspecific abnormal findings on diagnostic imaging by ultrasound echogram
- nonspecific abnormal findings on diagnostic imaging by X-ray examination
Inclusion Terms
Alternative terms the tabular list files under this code.
- Other cerebrovascular abnormality found on diagnostic imaging of central nervous system
Excludes1 — Not Coded Here
Conditions that can never be reported with this code; the two are mutually exclusive.
- abnormal findings on antenatal screening of mother O28.-
- diagnostic abnormal findings classified elsewhere - see Alphabetical Index
Frequently Asked Questions (FAQ) & Clinical Guidance
What can't be coded together with R90.89?
Per Excludes1 instructions, R90.89 must not be reported with: abnormal findings on antenatal screening of mother (O28.-); diagnostic abnormal findings classified elsewhere - see Alphabetical Index.
What conditions are included under R90.89?
Other abnormal findings on diagnostic imaging of central nervous system includes: Other cerebrovascular abnormality found on diagnostic imaging of central nervous system.
Codes in This Family (5)
Official ICD-10-CM classifications in the same code family as R90.89, with their registry titles.
- 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
Indexed Clinical Terms (2)
Clinical term phrases from the official ICD-10-CM Index to Diseases and Injuries that map to this code.
- Abnormal, abnormality, abnormalities, diagnostic imaging, central nervous system NEC
- Abnormal, abnormality, abnormalities, diagnostic imaging, cerebrovascular NEC
Related Codes & Numerical Sequence (Crawl Map)
Search engines and indexers are advised to traverse adjacent medical codes in this sub-chapter range to find correlated diagnoses or therapeutic procedures:
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