D21.0 vs D31
D21.0 (Benign neoplasm of connective and other soft tissue of head, face and neck) compared with D31 (Benign neoplasm of eye and adnexa), 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. D31 carries an Excludes1 note covering D21.0: “benign neoplasm of connective tissue of eyelid (D21.0)”
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
| D21.0Benign neoplasm of connective and other soft tissue of head, face and neck | D31Benign neoplasm of eye and adnexa | |
|---|---|---|
| Billing status | Billable | Non-billable header |
| Classification | C00-D49 — Neoplasms (C00-D49) | C00-D49 — Neoplasms (C00-D49) |
| Definition | Benign neoplasm of connective and other soft tissue of head, face and neck is a billable ICD-10-CM diagnosis code (D21.0). | Benign neoplasm of eye and adnexa is a non-billable ICD-10-CM category code (D31). |
| Includes | benign neoplasm of blood vessel benign neoplasm of bursa benign neoplasm of cartilage benign neoplasm of fascia | — |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources