R83.8 — Other abnormal findings in cerebrospinal fluid
R83.8 is a billable, specific ICD-10-CM code for other abnormal findings in cerebrospinal fluid. It is valid for submission on a claim.
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Abnormal chromosomal findings in cerebrospinal fluid
Risk adjustment
R83.8 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
Medicare coverage
R83.8 is named in 1 Medicare coverage policy — 1 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A57204Billing and Coding: MRI and CT Scans of the Head and Neck
How R83.8 is indexed
Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to R83.8.
- Abnormal, abnormality, abnormalities›cerebrospinal fluid›specified type NEC
- Abnormal, abnormality, abnormalities›chromosome, chromosomal›analysis result›cerebrospinal fluid
Related codes at this level
Codes that share R83. If R83.8 is not quite right, the correct code is usually one of these.
- R83.0Abnormal level of enzymes in cerebrospinal fluid
- R83.1Abnormal level of hormones in cerebrospinal fluid
- R83.2Abnormal level of other drugs, medicaments and biological substances in cerebrospinal fluid
- R83.3Abnormal level of substances chiefly nonmedicinal as to source in cerebrospinal fluid
- R83.4Abnormal immunological findings in cerebrospinal fluid
- R83.5Abnormal microbiological findings in cerebrospinal fluid
- R83.6Abnormal cytological findings in cerebrospinal fluid
- R83.9Unspecified abnormal finding in cerebrospinal fluid
Questions about R83.8
- Is R83.8 a billable ICD-10-CM code?
- Yes. R83.8 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does R83.8 sit in the tabular list?
- Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99), in the block Abnormal findings on examination of other body fluids, substances and tissues, without diagnosis (R83-R89).