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ICD-10-CM 2027

ICD-10 code for myelofibrosis

D47.1

Chronic myeloproliferative disease

✓ Billable / specificCC — complication/comorbidity

Confirmed by the official ICD-10-CM index entry “myelofibrosis › primary”. Page updated September 29, 2026.

About coding myelofibrosis

The ICD-10-CM code for myelofibrosis is D47.1 (Chronic myeloproliferative disease). The official index lists 1 more specific code, so check the documentation for details such as type, cause, site or severity before settling on D47.1.

It is also searched as primary myelofibrosis.

Within D47 (other neoplasms of uncertain behavior of lymphoid, hematopoietic and related tissue), D47.1 is specifically for chronic myeloproliferative disease. Related codes cover mast cell neoplasms of uncertain behavior (D47.0), monoclonal gammopathy (D47.2), essential (hemorrhagic) thrombocythemia (D47.3), Osteomyelofibrosis (D47.4), neoplasm of uncertain behavior of lymphoid, hematopoietic and related tissue, unspecified (D47.9) and other specified neoplasms of uncertain behavior of lymphoid, hematopoietic and related tissue (D47.Z).

Don't report D47.1 together with the conditions in its Excludes1 note: atypical chronic myeloid leukemia BCR/ABL-negative (C92.2-), chronic myeloid leukemia BCR/ABL-positive (C92.1-), myelofibrosis NOS (D75.81), myelophthisic anemia (D61.82) and 2 more.

As a secondary diagnosis it is a CC (complication or comorbidity), which can move an inpatient stay into the "with CC" MS-DRG of its family, unless the principal diagnosis excludes it.

Related Myelofibrosis codes

Don't confuse with (Excludes1 for D47.1)

  • atypical chronic myeloid leukemia BCR/ABL-negative (C92.2-)
  • chronic myeloid leukemia BCR/ABL-positive (C92.1-)
  • myelofibrosis NOS (D75.81)
  • myelophthisic anemia (D61.82)
  • myelophthisis (D61.82)
  • secondary myelofibrosis NOS (D75.81)

Common questions about myelofibrosis ICD-10 codes

What is the ICD-10 code for myelofibrosis?

D47.1 — Chronic myeloproliferative disease. More specific codes apply when the documentation supports them: D75.81.

What is the ICD-10 code for myelofibrosis?

D75.81 — Myelofibrosis.

Is D47.1 billable?

Yes. D47.1 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

Can D47.1 be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict D47.1 as a principal diagnosis.

Is D47.1 a CC or MCC?

D47.1 is a CC (complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.