D69.4Other primary thrombocytopenia

D69.4 is the ICD-10-CM diagnosis code for other primary thrombocytopenia. It belongs to category D69 (purpura and other hemorrhagic conditions), block D65-D69 (coagulation defects, purpura and other hemorrhagic conditions) and chapter 3 (diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism). It is a header code, so it can't be reported by itself; one of its 3 subcodes must be used instead.

Within D69, choose D69.4 (Other primary thrombocytopenia) only when documentation doesn't support a more specific option: allergic purpura (D69.0), qualitative platelet defects (D69.1), other nonthrombocytopenic purpura (D69.2), immune thrombocytopenic purpura (D69.3), secondary thrombocytopenia (D69.5), thrombocytopenia, unspecified (D69.6), other specified hemorrhagic conditions (D69.8) and hemorrhagic condition, unspecified (D69.9).

To report this condition, pick the subcode that matches the documentation: D69.41 (syndrome), D69.42 (purpura) and D69.49 (thrombocytopenia).

Don't report D69.4 together with the conditions in its Excludes1 note: transient neonatal thrombocytopenia (P61.0) and Wiskott-Aldrich syndrome (D82.0).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.