D72.81
Decreased white blood cell count
Non-billable headerNot valid on its own. Use one of the more specific codes under it.
D72.81 is a non-billable ICD-10-CM code header for decreased white blood cell count. Report a more specific code from it instead. It is part of the FY2027 code set, effective October 1, 2026. The more specific codes under it are D72.810 Lymphocytopenia; D72.818 Other decreased white blood cell count and D72.819 Decreased white blood cell count, unspecified. Its coding notes include 4 Excludes1 entries and 11 Excludes2 entries.
Excludes1
Not coded here. The listed conditions generally should not be reported together.
Inherited from D72.8 Other specified disorders of white blood cells
- leukemia (C91-C95)
Excludes2
Not included here. Both codes may be reported if the patient has both conditions.
This code
- neutropenia (D70)
Also from chapter/block level (9 notes)
Inherited from Chapter 3 Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism
- autoimmune disease (systemic) NOS (M35.9)
- certain conditions originating in the perinatal period (P00-P96)
- complications of pregnancy, childbirth and the puerperium (O00-O9A)
- congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
- endocrine, nutritional and metabolic diseases (E00-E88)
- human immunodeficiency virus [HIV] disease (B20)
- injury, poisoning and certain other consequences of external causes (S00-T88)
- neoplasms (C00-D49)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)