ICD-10 Code D75.828 – Other heparin-induced thrombocytopenia syndrome (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code D75.828 – Other heparin-induced thrombocytopenia syndrome
What it is
D75.828 identifies a form of heparin-induced thrombocytopenia that does not fit the more specific coded categories. Use it when documentation states another HIT syndrome or an atypical heparin-related platelet disorder.
Clinical signs
Clinical features vary; refer to documentation. Commonly, you may see a platelet count drop after heparin exposure, with or without new thrombosis, skin reaction, or other signs of heparin-related immune thrombocytopenia.
When to use this code
Use this code when the record clearly documents other heparin-induced thrombocytopenia syndrome and the provider does not specify a more exact HIT code. It may apply after heparin exposure when the condition is confirmed or strongly assessed in the chart. Check documentation if the note is ambiguous.
Do not use for
Do not use this code for simple thrombocytopenia without a heparin link. Also avoid it when the documentation supports a different, more specific HIT diagnosis or when the provider has not documented HIT.
Coding tip
Code the documented heparin association and any related thrombosis separately when supported by the record.