Is M02.3 a billable ICD-10-CM code?

No. M02.3 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does M02.3 sit in the tabular list?

Diseases of the musculoskeletal system and connective tissue (M00-M99), in the block Infectious arthropathies (M00-M02).

M02.3

M02.3 — Reiter's disease

Non-billable headerICD-10-CM

M02.3 is a non-billable header ICD-10-CM code for reiter's disease. It cannot be billed on its own: choose one of the more specific child codes below.

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

Reactive arthritis

Other codes that can never be billed with M02.3

These codes carry an Excludes1 note pointing at M02.3. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading M02.3 alone.

M01Direct infections of joint in infectious and parasitic diseases classified elsewhere
M45Ankylosing spondylitis
A74Other diseases caused by chlamydiae

Risk adjustment

M02.3 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.

Code to one of these instead M02.3

10 child codes. Green means billable.

Related codes at this level

Codes that share M02. If M02.3 is not quite right, the correct code is usually one of these.

Questions about M02.3

Is M02.3 a billable ICD-10-CM code?: No. M02.3 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does M02.3 sit in the tabular list?: Diseases of the musculoskeletal system and connective tissue (M00-M99), in the block Infectious arthropathies (M00-M02).