M35.0 vs R68.2
M35.0 (Sjögren syndrome) compared with R68.2 (Dry mouth, unspecified), from the official CMS tabular data. Do not report these codes together: the official tabular list marks them Excludes1.
Can these codes be reported together?
No — do not report together. M35.0 carries an Excludes1 note covering R68.2: “dry mouth, unspecified (R68.2)”
Sole exception: when the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).
No — do not report together. R68.2 carries an Excludes1 note covering M35.0: “dry mouth due to Sjögren syndrome (M35.0-)”
Sole exception: when the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).
Side by side
| M35.0Sjögren syndrome | R68.2Dry mouth, unspecified | |
|---|---|---|
| Billing status | Non-billable header | Billable |
| Classification | M00-M99 — Diseases of the Musculoskeletal System and Connective Tissue (M00-M99) | R00-R99 — Symptoms, Signs and Abnormal Clinical and Laboratory Findings, Not Elsewhere Classified (R00-R99) |
| Definition | Sjögren syndrome is a non-billable ICD-10-CM category code (M35.0). | Dry mouth, unspecified is a billable ICD-10-CM diagnosis code (R68.2). |
| Includes | autoimmune disease NOS collagen (vascular) disease NOS systemic autoimmune disease systemic collagen (vascular) disease | — |
| Use additional code | code to identify associated manifestations | — |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources