AHA Coding Clinic® for ICD-10-CM and ICD-10-PCS - 2016 Quarter 4; ICD-10-CM NEW/REVISED CODES
Atypical Small Acinar Proliferation
Code N42.3 has been expanded to uniquely identify unspecified dysplasia of prostate ( N42.30 ) , prostatic intraepithelial neoplasia ( N42.31 ) , atypical small acinar proliferation of prostate ( N42.32 ) , and other dysplasia of prostate ( N42.39 ) . Prior to this change, ICD-10-CM only provided code N42.3 , Dysplasia of prostate; however this code did not include atypical small acinar proliferation of prostate. Atypical small acinar proliferation (ASAP) is a pathological finding of a group of small prostatic glands that are suspicious for, but not diagnostic of, malignancy. Although ASAP implies an underlying carcinoma...
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Article Overview
This article is for coders, auditors, and clinical documentation staff who need to understand an ICD-10-CM change related to prostate dysplasia terminology. It summarizes the scope of the code expansion, places atypical small acinar proliferation in a clinical context, and explains why the update matters for accurate documentation and diagnosis reporting.
Why This Topic Matters
The article highlights a terminology update that changes how certain prostate pathology findings are represented in ICD-10-CM. Understanding the change helps support more precise documentation review and consistent diagnosis coding.
What You Will Learn
- How an ICD-10-CM prostate dysplasia code was expanded
- What broad clinical context surrounds atypical small acinar proliferation
- Why terminology precision matters for prostate pathology reporting
- How the article frames the relationship between the update and documentation accuracy
Who Should Read This
- Medical coders
- Coding auditors
- Clinical documentation integrity specialists
- Urology practice staff
- Revenue cycle professionals
Codes Discussed
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