ICD-10-CM 2027
ICD-10 code for fever neutropenia
From the official ICD-10-CM alphabetic index entry “Neutropenia, neutropenic (chronic) (genetic) (idiopathic) (immune) (infantile) (malignant) (pernicious) (splenic) › fever”. Page updated September 29, 2026.
About coding fever neutropenia
The ICD-10-CM code for fever neutropenia is D70.9 (Neutropenia, unspecified).
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.
Common questions about fever neutropenia ICD-10 codes
What is the ICD-10 code for fever neutropenia?
- D70.9 — Neutropenia, unspecified.
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.