Neutropenia (D70) ICD-10-CM
The D70 code range covers neutropenia with 8 ICD-10-CM diagnosis codes. 7 of them are billable and valid for claim submission in fiscal year 2026, and the category headers group them but cannot themselves be billed.
Includes
This note appears immediately under a three character code title to further define, or give examples of, the content of the category.
- agranulocytosis
- decreased absolute neurophile count (ANC)
Code Also
A "code also" note instructs that two codes may be required to fully describe a condition, but this note does not provide sequencing direction.
Use Additional Code
The “use additional code” indicates that a secondary code could be used to further specify the patient’s condition. This note is not mandatory and is only used if enough information is available to assign an additional code.
- code for any associated:
- fever R50.81
Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
Codes in the D70 Range 8 codes · 7 billable
Clinical Terms in This Code Range
Definitions from the National Library of Medicine for conditions coded in the D70 range.
Agranulocytosis
A decrease in the number of GRANULOCYTES; (BASOPHILS; EOSINOPHILS; and NEUTROPHILS).
Chemotherapy-Induced Febrile Neutropenia
FEVER accompanied by a significant reduction in NEUTROPHIL count associated with CHEMOTHERAPY.
Febrile Neutropenia
Fever accompanied by a significant reduction in the number of NEUTROPHILS.
Feline Panleukopenia
A highly contagious DNA virus infection of the cat family, characterized by fever, enteritis and bone marrow changes. It is also called feline ataxia, feline agranulocytosis, feline infectious enteritis, cat fever, cat plague, and show fever. It is caused by FELINE PANLEUKOPENIA VIRUS or the closely related MINK ENTERITIS VIRUS or CANINE PARVOVIRUS.
Neutropenia
A decrease in the number of NEUTROPHILS found in the blood.
Neutrophils
Granular leukocytes having a nucleus with three to five lobes connected by slender threads of chromatin, and cytoplasm containing fine inconspicuous granules and stainable by neutral dyes.
About the D70 Code Range
Neutropenia, classified under ICD-10 code D70, is a condition characterized by abnormally low levels of neutrophils, a type of white blood cell essential for fighting infections. These codes are used to identify various types of neutropenia, ranging from congenital forms to those caused by drugs, infections, or other medical conditions.
The ICD-10 code D70.0 specifies congenital agranulocytosis, known by several synonyms like Kostmann syndrome and congenital neutropenia. Code D70.1 covers neutropenia resulting from cancer chemotherapy, while D70.2 describes neutropenia induced by other drugs. Infection-related neutropenia is captured by D70.3. Cyclic neutropenia, marked by periodic drops in neutrophil counts, has its own code D70.4. D70.8 includes other forms such as autoimmune or benign ethnic neutropenia, often linked to disorders like febrile neutropenia or immune neutropenia. Lastly, D70.9 denotes unspecified neutropenia, useful when the exact cause is unknown. Understanding these codes helps healthcare providers and medical coders accurately document and manage patients with various neutropenia conditions using the appropriate ICD-10 code for neutropenia.
Questions About This Page
How many billable codes are in the D70 range?
Of the 8 codes in this range, 7 are billable and valid for claim submission from October 1, 2025 through September 30, 2026. Category header codes group them but cannot be reported on claims.
What does the D70 range classify?
The range classifies neutropenia. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2026 ICD-10-CM Tabular List and order file, effective October 1, 2025 through September 30, 2026.
