D47.02 vs Q82.2
D47.02 (Systemic mastocytosis) compared with Q82.2 (Congenital cutaneous mastocytosis), 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. D47.02 carries an Excludes1 note covering Q82.2: “congenital cutaneous mastocytosis (Q82.2)”
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. Q82.2 carries an Excludes1 note covering D47.02: “systemic mastocytosis (D47.02)”
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
| D47.02Systemic mastocytosis | Q82.2Congenital cutaneous mastocytosis | |
|---|---|---|
| Billing status | Billable | Billable |
| Classification | C00-D49 — Neoplasms (C00-D49) | Q00-Q99 — Congenital Malformations, Deformations and Chromosomal Abnormalities (Q00-Q99) |
| Definition | Systemic mastocytosis is a billable ICD-10-CM diagnosis code (D47.02). | Congenital cutaneous mastocytosis is a billable ICD-10-CM diagnosis code (Q82.2). |
| Includes | Indolent systemic mastocytosis Isolated bone marrow mastocytosis Smoldering systemic mastocytosis Systemic mastocytosis, with an associated hematological non-mast cell lineage disease (SM-AHNMD) | Congenital diffuse cutaneous mastocytosis Congenital maculopapular cutaneous mastocytosis Congenital urticaria pigmentosa |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources