ICD-10 Code for Leukopenia
The ICD-10-CM code for leukopenia is D72.819 — Decreased white blood cell count, unspecified. This is the code the Alphabetic Index gives for leukopenia with no further qualifier, valid for FY2027 (October 1, 2026 – September 30, 2027).
D72.819 is billable but unspecified. If the documentation names a type, site or cause, one of the more specific codes below is likely expected.
Which leukopenia code should you use?
The Alphabetic Index lists 7 codes under Leukopenia. Which one applies depends on the qualifier documented in the record — the type, site, cause, or associated condition. Find the qualifier below, then verify the code in the Tabular List before using it.
By type
| basophilic | D72.818 | Other decreased white blood cell count | |
| chemotherapyinduced | D70.1 | Agranulocytosis secondary to cancer chemotherapy | |
| congenital | D70.0 | Congenital agranulocytosis | |
| cyclic | D70.0 | Congenital agranulocytosis | |
| drug induced NEC | D70.2 | Other drug-induced agranulocytosis | |
| eosinophilic | D72.818 | Other decreased white blood cell count | |
| familial | D70.0 | Congenital agranulocytosis | |
| infantile genetic | D70.0 | Congenital agranulocytosis | |
| malignant | D70.9 | Neutropenia, unspecified | |
| periodic | D70.0 | Congenital agranulocytosis | |
| transitory neonatal | P61.5 | Transient neonatal neutropenia |
Leukopenia drug induced NEC
| due to cytoreductive cancer chemotherapy | D70.1 | Agranulocytosis secondary to cancer chemotherapy |
Index terms and codes are reproduced from the official ICD-10-CM FY2027 release. The Alphabetic Index is a finding aid — a code must always be verified in the Tabular List before it is reported. Data sources