Pathology/Lab Coding Alert
Master HCPIN in ICD-9, ICD-10
Question: I find prostate diagnoses very confusing, with PIN III and CIS and other terms that don’t seem to coincide with each other. Please help me figure out how to report HGPIN and ASAP of prostrate using ICD-9, and how those diagnoses will translate to ICD-10.
Colorado Subscriber
Answer: High-grade prostatic intraepithelial neoplasia (HGPIN) is equivalent to prostatic intraepithelial neoplasia (PIN) III. Whatever the name, the condition is a carcinoma in situ (CIS). Under ICD-9, you should report the condition as 233.4 (Carcinoma in situ of prostate), which crosswalks to D07.5 (Carcinoma in situ of prostate) in ICD-10.
You should report PIN I or PIN II using 602.3 (Dysplasia of prostate) in ICD-9, which crosswalks to N42.3 (Dysplasia of prostate) in ICD-10.
There are no specific ICD-9 or ICD-10 codes for prostatic atypical small acinar proliferation (ASAP), so you should use the “other specified” code. That’s 602.8 (Other specified disorders of prostate) in ICD-9, which crosswalks to N42.89 (Other specified disorders of prostate) in ICD-10.
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