Per this issue: Assign code N64.89, Other specified disorders of breast, for pseudoangiomatous stromal hyperplasia of breast (PASH). If a more specific breast disease is documented, assign a more specific code instead of code N64.89.The AMA posted a coding clinic regarding PASH ICD-10.
AHA Coding Clinic® for ICD-10-CM and ICD-10-PCS - 2019 Issue 1; Ask the Editor
Does anyone have access to this information that would provide the answer?