Is R90.81 a billable ICD-10-CM code?

Yes. R90.81 is a billable, specific ICD-10-CM code and is valid for submission on a claim.

Where does R90.81 sit in the tabular list?

Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99), in the block Abnormal findings on diagnostic imaging and in function studies, without diagnosis (R90-R94).

R90.81

R90.81 — Abnormal echoencephalogram

Billable / specific codeICD-10-CM

R90.81 is a billable, specific ICD-10-CM code for abnormal echoencephalogram. It is valid for submission on a claim.

Risk adjustment

R90.81 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

R90.81 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 R90.81 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 R90.81.

Abnormal, abnormality, abnormalities›echoencephalogram

Related codes at this level

Codes that share R90.8. If R90.81 is not quite right, the correct code is usually one of these.

Questions about R90.81

Is R90.81 a billable ICD-10-CM code?: Yes. R90.81 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does R90.81 sit in the tabular list?: Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99), in the block Abnormal findings on diagnostic imaging and in function studies, without diagnosis (R90-R94).