ICD-10-CM 2027
ICD-10 code for bone donor
From the official ICD-10-CM alphabetic index entry “Donor (organ or tissue) › bone”. Page updated September 29, 2026.
About coding bone donor
The ICD-10-CM code for bone donor is Z52.20 (Bone donor, unspecified). The official index lists 3 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on Z52.20.
Within Z52.2, choose Z52.20 (unspecified) only when documentation doesn't support a more specific option: autologous (Z52.21) and other (Z52.29).
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 564 (Other Musculoskeletal System and Connective Tissue Diagnoses with MCC, relative weight 1.4908), DRG 565 (Other Musculoskeletal System and Connective Tissue Diagnoses with CC, relative weight 0.9783) and DRG 566 (Other Musculoskeletal System and Connective Tissue Diagnoses without CC/MCC, relative weight 0.7378), in MDC 08 (Diseases and Disorders of the Musculoskeletal System and Connective Tissue), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
More specific bone donor codes (official index)
Common questions about bone donor ICD-10 codes
What is the ICD-10 code for bone donor?
- Z52.20 — Bone donor, unspecified. More specific codes apply when the documentation supports them: Z52.21, Z52.3, Z52.29.
What is the ICD-10 code for autologous bone donor?
- Z52.21 — Bone donor, autologous.
What is the ICD-10 code for marrow bone donor?
- Z52.3 — Bone marrow donor.
Is Z52.20 billable?
- Yes. Z52.20 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can Z52.20 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict Z52.20 as a principal diagnosis.
Is Z52.20 a CC or MCC?
- No. Z52.20 is neither a CC nor an MCC under MS-DRG v44.0.