D47.4 — Osteomyelofibrosis

Billable

Is D47.4 billable?

Yes — D47.4 is billable for FY2027. D47.4 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. D47.4 may be submitted for encounters from October 1, 2026 through September 30, 2027.

D47.4 at a glance

Code	D47.4
Description	Osteomyelofibrosis
Billable	Yes
Code set	ICD-10-CM FY2027
Valid for encounters	October 1, 2026 – September 30, 2027

Which MS-DRGs does D47.4 group to?

D47.4 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 D47.4 listed in the Alphabetic Index?

These are the routes through the Alphabetic Index that lead to D47.4. They show the wording a clinician may have documented, which often differs from the Tabular description.

Osteomyelofibrosis
Myelofibrosis › with myeloid metaplasia
Myelofibrosis › idiopathic
Myelosclerosis › with myeloid metaplasia
Myelosclerosis › megakaryocytic
Myelofibrosis › secondary › in myeloproliferative disease
Myelosclerosis › megakaryocytic › with myeloid metaplasia

Excludes1 — never code together

The conditions below can never be reported together with D47.4 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.

acute myelofibrosis (C94.4-)

Inclusion terms

Alternative wording in documentation that is classified to D47.4.

Chronic idiopathic myelofibrosis
Myelofibrosis (idiopathic) (with myeloid metaplasia)
Myelosclerosis (megakaryocytic) with myeloid metaplasia
Secondary myelofibrosis in myeloproliferative disease

Excludes1 — never code together — inherited from D37-D48

The conditions below can never be reported together with D47.4 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 D47.4 existed?

D47.4 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 D47.4?

ICD-10-CM declares these codes mutually exclusive with D47.4 — exactly one of each pair can be correct for a given encounter.

vs C94Other leukemias of specified cell type