R90.89 – Other abnormal findings on diagnostic imaging of central nervous system
ICD-10-CM 2027 diagnosis code · Abnormal findings on diagnostic imaging and in function studies, without diagnosis
- Code
R90.89(claims format:R9089)- Description
- Other abnormal findings on diagnostic imaging of central nervous system
- Short description
- Oth abnormal findings on diagnostic imaging of cnsl
- Billable
- Yes – valid for HIPAA-covered transactions
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 18. Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)
- Block
- R90-R94 Abnormal findings on diagnostic imaging and in function studies, without diagnosis
- Parent codes
- R90 › R90.8
Notes for R90.89
- Other cerebrovascular abnormality found on diagnostic imaging of central nervous system
Notes inherited from parent codes
Instructional notes at a category or block level apply to every code below it.
Block R90-R94
- nonspecific abnormal findings on diagnostic imaging by computerized axial tomography [CAT scan]
- nonspecific abnormal findings on diagnostic imaging by magnetic resonance imaging [MRI][NMR]
- 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
- abnormal findings on antenatal screening of mother (O28.-)
- diagnostic abnormal findings classified elsewhere - see Alphabetical Index
Index terms for R90.89
Entries in the ICD-10-CM alphabetic index that lead to this code:
Related codes in R90.8
Frequently asked questions
What is ICD-10 code R90.89?
R90.89 is the ICD-10-CM code for other abnormal findings on diagnostic imaging of central nervous system, in the block R90-R94 (Abnormal findings on diagnostic imaging and in function studies, without diagnosis).
Is R90.89 a billable code?
Yes. R90.89 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.
What category does R90.89 belong to?
It belongs to category R90 – Abnormal findings on diagnostic imaging of central nervous system.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.