CPT Code 88305 defines level IV surgical pathology. It includes gross and microscopic examination of a specimen for diagnosis.
CPT Code 88331 includes the surgery with frozen section and bills the first block.
CPT Code 88311 is under Surgical Pathology Procedures. It covers for the decalcification procedure.
ICD-10-CM Code N60.32 is the diagnostic code for Fibrosclerosis of left breast. It is a billable/specific code.