2023 ICD-10-CM Diagnosis Code D75.821

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Non-immune heparin-induced thrombocytopenia

    2023 - New Code Billable/Specific Code
  • D75.821 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • ICD-10-CM D75.821 is a new 2023 ICD-10-CM code that became effective on October 1, 2022.
  • This is the American ICD-10-CM version of D75.821 - other international versions of ICD-10 D75.821 may differ.
Applicable To
  • Non-immune HIT
  • Type 1 heparin-induced thrombocytopenia
The following code(s) above D75.821 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to D75.821:
  • D50-D89
    2023 ICD-10-CM Range D50-D89

    Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism

    Type 2 Excludes
    • autoimmune disease (systemic) NOS (M35.9)
    • certain conditions originating in the perinatal period (P00-P96)
    • complications of pregnancy, childbirth and the puerperium (O00-O9A)
    • congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
    • endocrine, nutritional and metabolic diseases (E00-E88)
    • human immunodeficiency virus [HIV] disease (B20)
    • injury, poisoning and certain other consequences of external causes (S00-T88)
    • neoplasms (C00-D49)
    • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
    Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism
  • D75
    ICD-10-CM Diagnosis Code D75

    Other and unspecified diseases of blood and blood-forming organs

      2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code
    Type 2 Excludes
    • acute lymphadenitis (L04.-)
    • chronic lymphadenitis (I88.1)
    • enlarged lymph nodes (R59.-)
    • hypergammaglobulinemia NOS (D89.2)
    • lymphadenitis NOS (I88.9)
    • mesenteric lymphadenitis (acute) (chronic) (I88.0)
    Other and unspecified diseases of blood and blood-forming organs
  • D75.82
    ICD-10-CM Diagnosis Code D75.82

    Heparin induced thrombocytopenia (HIT)

      2016 2017 2018 2019 2020 2021 2022 2023 - Converted to Parent Code Non-Billable/Non-Specific Code
    Use Additional
    • code, if applicable, for adverse effect of heparin (T45.515-)
    Heparin induced thrombocytopenia (HIT)
ICD-10-CM D75.821 is grouped within Diagnostic Related Group(s) (MS-DRG v40.0):
  • 791 Prematurity with major problems
  • 793 Full term neonate with major problems
  • 813 Coagulation disorders
Code History
  • 2023 (effective 10/1/2022): New code

Diagnosis Index entries containing back-references to D75.821:
  • Thrombocytopenia, thrombocytopenic D69.6
    ICD-10-CM Diagnosis Code D69.6

    Thrombocytopenia, unspecified

      2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
    • heparin induced (HIT) D75.829
      ICD-10-CM Diagnosis Code D75.829

      Heparin-induced thrombocytopenia, unspecified

        2023 - New Code Billable/Specific Code
      • non-immune D75.821
      • type 1 D75.821
    • heparin-associated D75.821

ICD-10-CM Codes Adjacent To D75.821
D74 Methemoglobinemia
D74.0 Congenital methemoglobinemia
D74.8 Other methemoglobinemias
D74.9 Methemoglobinemia, unspecified
D75 Other and unspecified diseases of blood and blood-forming organs
D75.0 Familial erythrocytosis
D75.1 Secondary polycythemia
D75.8 Other specified diseases of blood and blood-forming organs
D75.81 Myelofibrosis
D75.82 Heparin induced thrombocytopenia (HIT)
D75.821 Non-immune heparin-induced thrombocytopenia
D75.822 Immune-mediated heparin-induced thrombocytopenia
D75.828 Other heparin-induced thrombocytopenia syndrome
D75.829 Heparin-induced thrombocytopenia, unspecified
D75.83 Thrombocytosis
D75.838 Other thrombocytosis
D75.839 …… unspecified
D75.84 Other platelet-activating anti-PF4 disorders
D75.89 Other specified diseases of blood and blood-forming organs
D75.9 Disease of blood and blood-forming organs, unspecified
D75.A Glucose-6-phosphate dehydrogenase (G6PD) deficiency without anemia

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.