R77.8 — Other specified abnormalities of plasma proteins
R77.8 is a billable, specific ICD-10-CM code for other specified abnormalities of plasma proteins. It is valid for submission on a claim.
Risk adjustment
R77.8 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
R77.8 is named in 11 Medicare coverage policies — 11 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A56423Billing and Coding: Cardiology Non-emergent Outpatient Stress Testing
- A56423Billing and Coding: Cardiology Non-emergent Outpatient Stress Testing
- A56423Billing and Coding: Cardiology Non-emergent Outpatient Stress Testing
- A56423Billing and Coding: Cardiology Non-emergent Outpatient Stress Testing
How R77.8 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 R77.8.
- Abnormal, abnormality, abnormalities›plasma›protein›specified NEC
Related codes at this level
Codes that share R77. If R77.8 is not quite right, the correct code is usually one of these.
Questions about R77.8
- Is R77.8 a billable ICD-10-CM code?
- Yes. R77.8 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does R77.8 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 blood, without diagnosis (R70-R79).