D72.9 — Disorder of white blood cells, unspecified
Is D72.9 billable?
Yes, but D72.9 is an unspecified code. D72.9 is a valid, billable ICD-10-CM code for encounters from October 1, 2026 through September 30, 2027. However, D72.9 is an unspecified or catch-all code. Payers apply additional scrutiny to unspecified codes and many deny them when the medical record supports a more specific option, so check the documentation before selecting D72.9 — the more specific alternatives are listed below.
More specific alternatives
D72.9 at a glance
| Code | D72.9 |
|---|---|
| Description | Disorder of white blood cells, unspecified |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Which MS-DRGs does D72.9 group to?
D72.9 sits in MDC 16 and helps define the logic of 3 MS-DRGs (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.
- 814Reticuloendothelial and Immunity Disorders with MCCmedical
- 815Reticuloendothelial and Immunity Disorders with CCmedical
- 816Reticuloendothelial and Immunity Disorders without CC/MCCmedical
How is D72.9 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to D72.9. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Abnormal, abnormality, abnormalities › leukocyteNEC
- Abnormal, abnormality, abnormalities › white blood cells
- Disease, diseased › white blood cells
- Disorder › white blood cells (of)
- Findings, abnormal, inconclusive, without diagnosis › white blood cell
Inclusion terms
Alternative wording in documentation that is classified to D72.9.
- Abnormal leukocyte differential NOS
Excludes1 — never code together — inherited from D72
The conditions below can never be reported together with D72.9 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
Excludes2 — not included here — inherited from Chapter 3
The conditions below are not part of D72.9, but a patient may have both at the same time. When documentation supports it, D72.9 and the excluded code may both be reported.
- 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)
Excludes2 — not included here — inherited from D72
The conditions below are not part of D72.9, but a patient may have both at the same time. When documentation supports it, D72.9 and the excluded code may both be reported.
- neutropenia (D70)
How long has D72.9 existed?
D72.9 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.