ICD-10-CM 2027
ICD-10 code for neutropenia
From the official ICD-10-CM alphabetic index entry “Neutropenia, neutropenic (chronic) (genetic) (idiopathic) (immune) (infantile) (malignant) (pernicious) (splenic)”. Page updated September 29, 2026.
About coding neutropenia
The ICD-10-CM code for neutropenia is D70.9 (Neutropenia, unspecified). The official index lists 14 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on D70.9.
Within D70, choose D70.9 (unspecified) only when documentation doesn't support a more specific option: congenital agranulocytosis (D70.0), agranulocytosis secondary to cancer chemotherapy (D70.1), other drug-induced agranulocytosis (D70.2), due to infection (D70.3), Cyclic neutropenia (D70.4) and other neutropenia (D70.8).
Use an additional code for any associated: fever (R50.81).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
More specific neutropenia codes (official index)
- benign ethnic
- congenital (primary) D70.0 — Congenital agranulocytosis
- cyclic D70.4 — Cyclic neutropenia
- cytoreductive cancer chemotherapy sequela D70.1 — Agranulocytosis secondary to cancer chemotherapy
- drug-induced D70.2 — Other drug-induced agranulocytosis
- due to cytoreductive cancer chemotherapy D70.1 — Agranulocytosis secondary to cancer chemotherapy
- due to infection D70.3 — Neutropenia due to infection
- fever D70.9 — Neutropenia, unspecified
- neonatal, transitory (isoimmune) (maternal transfer) P61.5 — Transient neonatal neutropenia
- periodic D70.4 — Cyclic neutropenia
- secondary (cyclic) (periodic) (splenic) D70.4 — Cyclic neutropenia
- drug-induced D70.2 — Other drug-induced agranulocytosis
- due to cytoreductive cancer chemotherapy D70.1 — Agranulocytosis secondary to cancer chemotherapy
- specified NEC D70.8 — Other neutropenia
- toxic D70.8 — Other neutropenia
Common questions about neutropenia ICD-10 codes
What is the ICD-10 code for neutropenia?
- D70.9 — Neutropenia, unspecified. More specific codes apply when the documentation supports them: D70.0, D70.4, D70.1, D70.2 and others below.
What is the ICD-10 code for congenital neutropenia?
- D70.0 — Congenital agranulocytosis.
What is the ICD-10 code for cyclic neutropenia?
- D70.4 — Cyclic neutropenia.
What is the ICD-10 code for cytoreductive cancer chemotherapy sequela neutropenia?
- D70.1 — Agranulocytosis secondary to cancer chemotherapy.
What is the ICD-10 code for drug-induced neutropenia?
- D70.2 — Other drug-induced agranulocytosis.
What is the ICD-10 code for fever neutropenia?
- D70.9 — Neutropenia, unspecified.
What is the ICD-10 code for periodic neutropenia?
- D70.4 — Cyclic neutropenia.
Is D70.9 billable?
- Yes. D70.9 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can D70.9 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict D70.9 as a principal diagnosis.
Is D70.9 a CC or MCC?
- No. D70.9 is neither a CC nor an MCC under MS-DRG v44.0.