Other nonthrombocytopenic purpuras

This code signifies a group of bleeding disorders characterized by purpuric skin lesions due to capillary fragility or inflammation, not primarily caused by a low platelet count. These conditions involve extravasation of blood into the skin and mucous membranes, leading to visible purple spots or patches. The underlying pathology is often related to vascular integrity rather than a defect in coagulation factors or platelet quantity.

Use this code for diagnoses such as Henoch-Schönlein purpura, allergic purpura, or other forms of vasculitis-related purpura where thrombocytopenia has been ruled out. Documentation should clearly indicate the presence of purpura and explicitly state that platelet counts are normal or that the purpura is not due to a platelet disorder. This code is appropriate when the specific type of nonthrombocytopenic purpura is not further specified by a more precise ICD-9 code.

• Ensure documentation explicitly rules out thrombocytopenia as the cause of the purpura.
• Avoid using this code if a more specific type of nonthrombocytopenic purpura (e.g., Henoch-Schönlein) is documented and has its own unique ICD-9 code.
• Always review the medical record for the underlying cause or associated conditions, as these may require additional coding.