ICD-10-CM 2027
ICD-10 code for thrombocytopenic purpura
From the official ICD-10-CM alphabetic index entry “Purpura › thrombocytopenic”. Page updated September 29, 2026.
About coding thrombocytopenic purpura
The ICD-10-CM code for thrombocytopenic purpura is D69.49 (Other primary thrombocytopenia). The official index lists 7 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on D69.49.
Within D69.4, choose D69.49 (Other primary thrombocytopenia) only when documentation doesn't support a more specific option: Evans syndrome (D69.41) and congenital and hereditary thrombocytopenia purpura (D69.42).
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 813 (Coagulation Disorders, relative weight 1.5257), 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.
More specific thrombocytopenic purpura codes (official index)
- congenital D69.42 — Congenital and hereditary thrombocytopenia purpura
- hemorrhagic D69.3 — Immune thrombocytopenic purpura
- hereditary D69.42 — Congenital and hereditary thrombocytopenia purpura
- idiopathic D69.3 — Immune thrombocytopenic purpura
- immune D69.3 — Immune thrombocytopenic purpura
- neonatal, transitory P61.0 — Transient neonatal thrombocytopenia
- thrombotic M31.19 — Other thrombotic microangiopathy
Common questions about thrombocytopenic purpura ICD-10 codes
What is the ICD-10 code for thrombocytopenic purpura?
- D69.49 — Other primary thrombocytopenia. More specific codes apply when the documentation supports them: D69.42, D69.3, D69.42, D69.3 and others below.
What is the ICD-10 code for congenital thrombocytopenic purpura?
- D69.42 — Congenital and hereditary thrombocytopenia purpura.
What is the ICD-10 code for hemorrhagic thrombocytopenic purpura?
- D69.3 — Immune thrombocytopenic purpura.
What is the ICD-10 code for hereditary thrombocytopenic purpura?
- D69.42 — Congenital and hereditary thrombocytopenia purpura.
What is the ICD-10 code for idiopathic thrombocytopenic purpura?
- D69.3 — Immune thrombocytopenic purpura.
What is the ICD-10 code for immune thrombocytopenic purpura?
- D69.3 — Immune thrombocytopenic purpura.
What is the ICD-10 code for thrombotic thrombocytopenic purpura?
- M31.19 — Other thrombotic microangiopathy.
Is D69.49 billable?
- Yes. D69.49 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can D69.49 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict D69.49 as a principal diagnosis.
Is D69.49 a CC or MCC?
- No. D69.49 is neither a CC nor an MCC under MS-DRG v44.0.