D75.838 Other thrombocytosis

Billable ICD-10-CM code, FY2026.

Applicable to

• Reactive thrombocytosis
• Secondary thrombocytosis

Code also

• underlying condition, if known and applicable

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)

Applies from D75.83 Thrombocytosis

Excludes2 (not included here)

• essential thrombocythemia (D47.3)

MS-DRG index

Defines the logic of DRG(s) 814-816 in MDC 16.

Code annotations containing back-references to D75.838

Back-references to D75.838

• Type 2 Excludes: D47.3 Essential (hemorrhagic) thrombocythemia ("reactive thrombocytosis (D75.838)")
• Type 2 Excludes: D47.3 Essential (hemorrhagic) thrombocythemia ("secondary thrombocytosis (D75.838)")

Diagnosis Index entries for D75.838

• Thrombocytosis › reactive
• Thrombocytosis › secondary
• Thrombocytosis › specified NEC

Nearby codes

• 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 (this code)
• D75.839 Thrombocytosis, 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