Is M35.0 a billable ICD-10-CM code?

No. M35.0 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does M35.0 sit in the tabular list?

Diseases of the musculoskeletal system and connective tissue (M00-M99), in the block Systemic connective tissue disorders (M30-M36).

What cannot be coded together with M35.0?

M35.0 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above M35.0 (M35) and apply to it just the same.

M35.0

M35.0 — Sjogren syndrome

Non-billable headerICD-10-CM

M35.0 is a non-billable header ICD-10-CM code for sjogren syndrome. It cannot be billed on its own: choose one of the more specific child codes below.

Excludes1 — never code together

These conditions cannot occur together. Billing both on the same encounter is a denial.

dry mouth, unspecified (R68.2)

Use additional code

Add a secondary code to capture the detail described below.

code to identify associated manifestations

Inclusion terms

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

Sicca syndrome

Excludes1 inherited from the categories above M35.0

These are not written on M35.0, but they bind it: a note on a category applies to every code beneath it. Billing M35.0 with anything listed here is a denial.

Written on M35 — Other systemic involvement of connective tissue

reactive perforating collagenosis (L87.1)

Other codes that can never be billed with M35.0

These codes carry an Excludes1 note pointing at M35.0. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading M35.0 alone.

G73.7Myopathy in diseases classified elsewhere
H16.22Keratoconjunctivitis sicca, not specified as Sjogren's
J99Respiratory disorders in diseases classified elsewhere
K11.8Other diseases of salivary glands
N16Renal tubulo-interstitial disorders in diseases classified elsewhere
R68.2Dry mouth, unspecified

Risk adjustment

M35.0 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.

Code history

M35.0 has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.

Code to one of these instead M35.0

13 child codes. Green means billable.

Related codes at this level

Codes that share M35. If M35.0 is not quite right, the correct code is usually one of these.

Questions about M35.0

Is M35.0 a billable ICD-10-CM code?: No. M35.0 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does M35.0 sit in the tabular list?: Diseases of the musculoskeletal system and connective tissue (M00-M99), in the block Systemic connective tissue disorders (M30-M36).
What cannot be coded together with M35.0?: M35.0 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above M35.0 (M35) and apply to it just the same.