D29.21 ICD-10-CM Code: Benign neoplasm of right testis
HCC Buddy Code Card
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FY 2026 Apr update / Neoplasms (C00-D49) / Benign neoplasms, except benign neuroendocrine tumors (D10-D36)
D29.21
Billable / SpecificICD-10-CMOfficial ICD-10-CMCodebook guidanceBenign neoplasm of right testis
A non-cancerous tumor that develops in the right testis, one of the two male reproductive glands that produce sperm.
CMS-HCC V28
00
RAF 0
CMS-HCC V24
00
RAF 0
ACA/HHS
00
RAF 0
ESRD/PACE
00
RAF 0
RXHCC
00
RAF 0
Code Trumping
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Code Book Path
Inclusion Terms
OfficialICD-10-CM does not list inclusion terms for D29.21 in this effective period.
Excludes 2
OfficialICD-10-CM does not list Excludes 2 notes for D29.21 in this effective period.
Related Child Codes
Includes
OfficialICD-10-CM does not list Includes notes for D29.21 in this effective period.
Excludes 1
OfficialICD-10-CM does not list Excludes 1 notes for D29.21 in this effective period.
Code First
OfficialICD-10-CM does not list Code First sequencing instructions for D29.21 in this effective period.
Use Additional
Official- code to identify any functional activity.
Code Also
OfficialICD-10-CM does not list Code Also instructions for D29.21 in this effective period.
Buddy Documentation Tip
Last updated: FY2026 ICD-10-CM Apr update, Apr 1, 2026 through Sep 30, 2026. CMS-HCC V28 is 100% phased in for payment year 2026.
Is D29.21 an HCC code?
No. D29.21 is a billable ICD-10-CM code but does not map to any HCC category in V28, V24, ESRD, or RxHCC.
This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).
What This Code Means
D29.21 is the ICD-10-CM diagnosis code for benign neoplasm of right testis. A non-cancerous tumor that develops in the right testis, one of the two male reproductive glands that produce sperm. D29.21 sits in the ICD-10-CM chapter for neoplasms (c00-d49), within the section covering benign neoplasms, except benign neuroendocrine tumors (d10-d36).
D29.21 is a billable ICD-10-CM code but does not map to a payment HCC under the CMS-HCC V28, V24, ESRD, or RxHCC risk adjustment models. It can be reported on Medicare Advantage encounter data submissions but it does not contribute to a beneficiary's RAF score and therefore does not affect risk-adjusted payments to the plan.
Ensure right laterality is clearly documented before assigning this code.
HCC Buddy maintains structured V28 and V24 mapping, RAF weights, and MEAT documentation criteria for D29.21 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.