Is R94.01 a billable ICD-10-CM code?

Yes. R94.01 is a billable, specific ICD-10-CM code and is valid for submission on a claim.

Where does R94.01 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).

R94.01

R94.01 — Abnormal electroencephalogram [EEG]

Billable / specific codeICD-10-CM

R94.01 is a billable, specific ICD-10-CM code for abnormal electroencephalogram [eeg]. It is valid for submission on a claim.

Risk adjustment

R94.01 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

R94.01 is named in 2 Medicare coverage policies — 2 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

A56612Billing and Coding: CT of the Head
A57204Billing and Coding: MRI and CT Scans of the Head and Neck

How R94.01 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 R94.01.

Abnormal, abnormality, abnormalities›electroencephalogram [EEG]

Related codes at this level

Codes that share R94.0. If R94.01 is not quite right, the correct code is usually one of these.

Questions about R94.01

Is R94.01 a billable ICD-10-CM code?: Yes. R94.01 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does R94.01 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).