D47.Z9 Other specified neoplasms of uncertain behavior of lymphoid, hematopoietic and related tissue

✓ Billable ICD-10-CM 2026
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The ICD-10-CM code for Other specified neoplasms of uncertain behavior of lymphoid, hematopoietic and related tissue is D47.Z9 (FY2026). It is a billable, claim-ready diagnosis code.

Classification

Section
D37-D48: Neoplasms of uncertain behavior, polycythemia vera and myelodysplastic syndromes (D37-D48)
Category D47
14 codes (11 billable)
FY2026 Status
Stable since FY2024

Also Known As

ICD-10-CM Alphabetic Index entries that lead to D47.Z9:

  • Anemia (essential) (general) (hemoglobin deficiency) (infantile) (primary) (profound) › myeloproliferative
  • Lesion (s) (nontraumatic) › angiocentric immunoproliferative
  • Disease, diseased › lymphoproliferative › specified NEC
  • Disease, diseased › lymphoproliferative › T-gamma

Inclusion Terms

  • Histiocytic tumors of uncertain behavior

U.S. Hospital Utilization

  • An estimated 700 U.S. inpatient stays in 2023 included D47.Z9 among the documented diagnoses.
  • 85 stays listed it as the principal diagnosis.

Source: National Inpatient Sample (NIS), Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality, 2016–2023. National survey-weighted estimates.

Official Coding Guidelines

Tx of primary site (TOC entry)

a. Admission/Encounter for treatment of primary site ............................................................. 33

— ICD-10-CM Official Guidelines for Coding and Reporting, FY2026, Section I.C.2.a
Tx of secondary site (TOC entry)

b. Admission/Encounter for treatment of secondary site .......................................................... 33

— ICD-10-CM Official Guidelines for Coding and Reporting, FY2026, Section I.C.2.b

Source: CMS — ICD-10-CM Official Guidelines for Coding and Reporting, FY2026

References

Related Codes

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Reviewed by Prajwal Shrestha, CPC, CRC
Certified Professional Coder (CPC) and Certified Risk Adjustment Coder (CRC) · AAPC Member ID 01997614 · About · Editorial policy · Content last reviewed: 2025-10-01

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