D22.21 (Melanocytic nevi of right ear and external auricular canal) compared with D22.22 (Melanocytic nevi of left ear and external auricular canal), from the official CMS tabular data. D22.21 and D22.22 code the same condition on opposite sides. MedCoder-derived
Same condition; these differ only in which side is documented.
These codes share a category and title and differ only in the side affected. The documentation decides which applies, and a bilateral code is reported only where the code set provides one.
Source: ICD-10-CM tabular list (laterality variant derived from the code title)
Same condition, opposite side. D22.21 and D22.22 name the same condition on opposite sides of the body.
Same category and title, differing only in which side is affected — the documentation decides which one applies, and a bilateral code is reported only where the code set provides one.
| D22.21Melanocytic nevi of right ear and external auricular canal | D22.22Melanocytic nevi of left ear and external auricular canal | |
|---|---|---|
| Billing status | Billable | Billable |
| Classification | C00-D49 — Neoplasms | C00-D49 — Neoplasms |
| Definition | Melanocytic nevi of right ear and external auricular canal is a billable ICD-10-CM diagnosis code (D22.21). | Melanocytic nevi of left ear and external auricular canal is a billable ICD-10-CM diagnosis code (D22.22). |
| Includes | atypical nevus blue hairy pigmented nevus nevus NOS | atypical nevus blue hairy pigmented nevus nevus NOS |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources