D75.84 Other platelet-activating anti-PF4 disorders

Billable ICD-10-CM code, FY2026.

Applicable to

• Spontaneous heparin-induced thrombocytopenia syndrome (without heparin exposure)
• Thrombosis with thrombocytopenia syndrome
• Vaccine-induced thrombotic thrombocytopenia

Use additional code

• code, if applicable, for adverse effect of other viral vaccine (T50.B95-)

Applies from D75 Other and unspecified diseases of blood and blood-forming organs

Excludes2 (not included here)

• 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)

Risk adjustment (HCC)

• CMS-HCC V28: HCC 112 — Immune Thrombocytopenia and Specified Coagulation Defects and Hemorrhagic Conditions
• CMS-HCC V22: HCC 48 — Coagulation Defects and Other Specified Hematological Disorders
• ESRD V24: HCC 48

MS-DRG index

Defines the logic of DRG(s) 791 in MDC 15.

Diagnosis Index entries for D75.84

• Disorder (of) › platelet-activating anti-PF4, specified NEC
• Syndrome › thrombosis with thrombocytopenia
• Thrombocytopenia, thrombocytopenic › heparin induced (HIT) › syndrome › spontaneous (without heparin exposure)
• Thrombocytopenia, thrombocytopenic › vaccine-induced thrombotic

Nearby codes

• D75.828 Other heparin-induced thrombocytopenia syndrome
• D75.829 Heparin-induced thrombocytopenia, unspecified
• D75.83 Thrombocytosis
• D75.838 Other thrombocytosis
• D75.839 Thrombocytosis, unspecified
• D75.84 Other platelet-activating anti-PF4 disorders (this code)
• 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