ICD-10 Code D69.1 – Qualitative platelet defects (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code D69.1 – Qualitative platelet defects
What it is
D69.1 identifies disorders where platelets are present but do not work properly, leading to impaired clot formation. Use it for qualitative platelet dysfunction, not for low platelet counts.
Clinical signs
Typical findings include easy bruising, mucosal bleeding, prolonged bleeding after minor injury, and excessive bleeding after procedures. Clinical features vary; refer to documentation.
When to use this code
Use D69.1 when the record documents a platelet function defect, such as inherited or acquired platelet dysfunction, and the platelet count is not the main issue. It may also fit when the provider describes abnormal platelet aggregation or adhesion. Check documentation if the cause is unclear.
Do not use for
Do not use this code for thrombocytopenia, purpura caused by low platelets, or generalized coagulation disorders without a platelet function defect. Check documentation.
Coding tip
Assign D69.1 only when the clinician clearly documents qualitative platelet dysfunction; otherwise, verify whether a different bleeding disorder code applies.