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ICD-10-CM 2027 diagnosis code

D47.2Monoclonal gammopathy

✓ Billable / specific

D47.2 is a valid, billable ICD-10-CM code for monoclonal gammopathy. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.

Looking up by condition? See ICD-10 code for Gammopathy.

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About D47.2

D47.2 is the ICD-10-CM diagnosis code for monoclonal gammopathy. It belongs to category D47 (other neoplasms of uncertain behavior of lymphoid, hematopoietic and related tissue), block D37-D48 (neoplasms of uncertain behavior, polycythemia vera and myelodysplastic syndromes) and chapter 2 (neoplasms). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.

Within D47 (other neoplasms of uncertain behavior of lymphoid, hematopoietic and related tissue), D47.2 is specifically for monoclonal gammopathy. Related codes cover mast cell neoplasms of uncertain behavior (D47.0), chronic myeloproliferative disease (D47.1), 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).

It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.

In MS-DRG v44.0, it is part of the grouping logic for DRG 814 (Reticuloendothelial and Immunity Disorders with MCC, relative weight 2.0729), DRG 815 (Reticuloendothelial and Immunity Disorders with CC, relative weight 1.0444) and DRG 816 (Reticuloendothelial and Immunity Disorders without CC/MCC, relative weight 0.7381), in MDC 16 (Diseases and Disorders of the Blood and Blood Forming Organs and Immunological Disorders), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Before ICD-10, this condition was coded in ICD-9-CM as 273.1 (monoclonal paraproteinemia).

Coding notes

Applicable toConditions and synonyms classified to this code
  • Monoclonal gammopathy of undetermined significance [MGUS]

Notes that apply from higher levels

Instructions written at a parent level also apply to D47.2.

Broader instructions also apply from D37-D48 Neoplasms of uncertain behavior, polycythemia vera and myelodysplastic syndromes and Chapter 2: Neoplasms.

Alphabetic index entries

8 entries

Terms in the official ICD-10-CM index that lead to D47.2.

Codes whose notes reference D47.2

MS-DRG v44.0 grouping

All DRGs →

Inpatient MS-DRGs this diagnosis can group to, as the principal or a secondary diagnosis, depending on the rest of the claim.

ICD-9-CM equivalent

Converter →
  • 273.1Monoclonal paraproteinemiaapproximate

From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • No changes since FY2016.

Common questions about D47.2

Is D47.2 billable?

Yes. D47.2 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

Can D47.2 be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict D47.2 as a principal diagnosis.

Is D47.2 a CC or MCC?

No. D47.2 is neither a CC nor an MCC under MS-DRG v44.0.

What DRG does D47.2 group to?

D47.2 is used in the MS-DRG v44.0 logic for MS-DRG 814 (Reticuloendothelial and Immunity Disorders with MCC), MS-DRG 815 (Reticuloendothelial and Immunity Disorders with CC) and MS-DRG 816 (Reticuloendothelial and Immunity Disorders without CC/MCC). Which one applies depends on whether it is the principal diagnosis and on the rest of the claim.

What is the ICD-9 code for D47.2?

The CMS General Equivalence Mappings map D47.2 to ICD-9-CM 273.1.