L81.4 vs Q82.5
L81.4 (Other melanin hyperpigmentation) compared with Q82.5 (Congenital non-neoplastic nevus), 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. L81.4 carries an Excludes1 note covering Q82.5: “birthmark NOS (Q82.5)”
Sole exception: when the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).
Yes, when both are documented. Q82.5 carries an Excludes2 note covering L81.4: “lentigo (L81.4)”
Excludes2 marks distinct conditions — both may be reported when both are documented.
Side by side
| L81.4Other melanin hyperpigmentation | Q82.5Congenital non-neoplastic nevus | |
|---|---|---|
| Billing status | Billable | Billable |
| Classification | L00-L99 — Diseases of the Skin and Subcutaneous Tissue (L00-L99) | Q00-Q99 — Congenital Malformations, Deformations and Chromosomal Abnormalities (Q00-Q99) |
| Definition | Other melanin hyperpigmentation is a billable ICD-10-CM diagnosis code (L81.4). | Congenital non-neoplastic nevus is a billable ICD-10-CM diagnosis code (Q82.5). |
| Includes | Lentigo | Birthmark NOS Flammeus Nevus Portwine Nevus Sanguineous Nevus |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources