Is D47.02 a billable ICD-10-CM code?

Yes. D47.02 is a billable, specific ICD-10-CM code and is valid for submission on a claim.

Where does D47.02 sit in the tabular list?

Neoplasms (C00-D49), in the block Neoplasms of uncertain behavior, polycythemia vera and myelodysplastic syndromes (D37-D48).

What cannot be coded together with D47.02?

D47.02 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.

D47.02

D47.02 — Systemic mastocytosis

Billable / specific codeICD-10-CM

D47.02 is a billable, specific ICD-10-CM code for systemic mastocytosis. It is valid for submission on a claim.

Excludes1 — never code together

These conditions cannot occur together. Billing both on the same encounter is a denial.

aggressive systemic mastocytosis (C96.21)
mast cell leukemia (C94.3-)

Code also

Both codes may be needed to describe the encounter fully. Sequencing depends on the reason for the visit.

, if applicable, any associated hematological non-mast cell lineage disease, such as:
acute myeloid leukemia (C92.6-, C92.A-)
chronic myelomonocytic leukemia (C93.1-)
essential thrombocytosis (D47.3)
hypereosinophilic syndrome (D72.1)
myelodysplastic syndrome (D46.9)
myeloproliferative syndrome (D47.1)
non-Hodgkin lymphoma (C82-C85)
plasma cell myeloma (C90.0-)
polycythemia vera (D45)

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

Indolent systemic mastocytosis
Isolated bone marrow mastocytosis
Smoldering systemic mastocytosis
Systemic mastocytosis, with an associated hematological non-mast cell lineage disease (SM-AHNMD)

Other codes that can never be billed with D47.02

These codes carry an Excludes1 note pointing at D47.02. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading D47.02 alone.

Q82.2Congenital cutaneous mastocytosis
C96.2Malignant mast cell neoplasm
D89.4Mast cell activation syndrome and related disorders

Risk adjustment

D47.02 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.

Medicare coverage

D47.02 is named in 39 Medicare coverage policies — 39 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

A52480Oral Antiemetic Drugs (Replacement for Intravenous Antiemetics) - Policy Article
A55717Billing and Coding: Lab: Flow Cytometry
A56199Billing and Coding: Molecular Pathology Procedures
A56199Billing and Coding: Molecular Pathology Procedures

How D47.02 is indexed

Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to D47.02.

Disease, diseased›systemic tissue mast cell
Mast cell›disease, systemic tissue
Mastocytosis›indolent systemic
Mastocytosis›isolated bone marrow
Mastocytosis›systemic›with an associated hematological non-mast cell lineage disease(SM-AHNMD)

Related codes at this level

Codes that share D47.0. If D47.02 is not quite right, the correct code is usually one of these.

Questions about D47.02

Is D47.02 a billable ICD-10-CM code?: Yes. D47.02 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does D47.02 sit in the tabular list?: Neoplasms (C00-D49), in the block Neoplasms of uncertain behavior, polycythemia vera and myelodysplastic syndromes (D37-D48).
What cannot be coded together with D47.02?: D47.02 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.