D45 — Polycythemia vera
Is D45 billable?
Yes — D45 is billable for FY2027. D45 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. D45 may be submitted for encounters from October 1, 2026 through September 30, 2027.
D45 at a glance
| Code | D45 |
|---|---|
| Description | Polycythemia vera |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Which MS-DRGs does D45 group to?
D45 sits in MDC 17 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.
- 820Lymphoma and Leukemia with Major O.R. Procedures with MCCsurgical
- 821Lymphoma and Leukemia with Major O.R. Procedures with CCsurgical
- 822Lymphoma and Leukemia with Major O.R. Procedures without CC/MCCsurgical
How is D45 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to D45. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Heilmeyer-Schoner disease
- Erythremia › chronic (acute)
- Polycythemia › vera (secondary)
Excludes1 — never code together
The conditions below can never be reported together with D45 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
Excludes1 — never code together — inherited from D37-D48
The conditions below can never be reported together with D45 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- neoplasms of unspecified behavior (D49.-)
How long has D45 existed?
D45 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.
Which codes are confused with D45?
ICD-10-CM declares these codes mutually exclusive with D45 — exactly one of each pair can be correct for a given encounter.