Is R90.0 a billable ICD-10-CM code?

Yes. R90.0 is a billable, specific ICD-10-CM code and is valid for submission on a claim.

Where does R90.0 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).

R90.0

R90.0 — Intracranial space-occupying lesion found on diagnostic imaging of central nervous system

Billable / specific codeICD-10-CM

R90.0 is a billable, specific ICD-10-CM code for intracranial space-occupying lesion found on diagnostic imaging of central nervous system. It is valid for submission on a claim.

Other codes that can never be billed with R90.0

These codes carry an Excludes1 note pointing at R90.0. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading R90.0 alone.

R93.0Abnormal findings on diagnostic imaging of skull and head, not elsewhere classified

Risk adjustment

R90.0 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

R90.0 is named in 9 Medicare coverage policies — 9 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

A56464Billing and Coding: Flow Cytometry
A56612Billing and Coding: CT of the Head
A56729Billing and Coding: Magnetic Resonance Imaging of the Head and Neck
A56747Billing and Coding: Magnetic Resonance Angiography (MRA)

How R90.0 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 R90.0.

Lesion›intracranial, space-occupying

Related codes at this level

Codes that share R90. If R90.0 is not quite right, the correct code is usually one of these.

R90.8Other abnormal findings on diagnostic imaging of central nervous system

Questions about R90.0

Is R90.0 a billable ICD-10-CM code?: Yes. R90.0 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does R90.0 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).