E29.1 ICD-10-CM Code: Testicular hypofunction
HCC Buddy Code Card
Digital ICD-10 code-book layout with official code detail, always-visible risk models, Code Trumping, and Buddy coding guidance.
FY 2026 Apr update / Endocrine, nutritional and metabolic diseases (E00-E89) / Disorders of other endocrine glands (E20-E35)
E29.1
Billable / SpecificICD-10-CMOfficial ICD-10-CMCodebook guidanceTesticular hypofunction
A condition where the testes do not produce adequate male hormones, resulting in low testosterone and symptoms like fatigue, reduced muscle mass, or sexual dysfunction.
CMS-HCC V28
N/A—
Not mapped
CMS-HCC V24
N/A—
Not mapped
ACA/HHS
N/A—
Not mapped
ESRD/PACE
N/A—
Not mapped
RXHCC
N/A—
Not mapped
Code Book Path
Inclusion Terms
Official- Defective biosynthesis of testicular androgen NOS
- 5-delta-Reductase deficiency (with male pseudohermaphroditism)
- Testicular hypogonadism NOS
Excludes 2
OfficialICD-10-CM does not list Excludes 2 notes for E29.1 in this effective period.
Related Child Codes
Includes
OfficialICD-10-CM does not list Includes notes for E29.1 in this effective period.
Excludes 1
Official- postprocedural testicular hypofunction (E89.5)
Code First
OfficialICD-10-CM does not list Code First sequencing instructions for E29.1 in this effective period.
Use Additional
Official- code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5)
Code Also
OfficialICD-10-CM does not list Code Also instructions for E29.1 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 E29.1 an HCC code?
No. E29.1 is a billable ICD-10-CM code but does not map to any HCC category in V28, V24, ESRD, or RxHCC.
Coder workflow notes
Get the V28 RAF + MEAT cheat sheet
One printable page: confirm a code's V28 HCC status, its RAF weight, and the MEAT your note needs to make it stick. Free, no card.
Free PDF. No card. Unsubscribe anytime.
This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).
What This Code Means
E29.1 is the ICD-10-CM diagnosis code for testicular hypofunction. A condition where the testes do not produce adequate male hormones, resulting in low testosterone and symptoms like fatigue, reduced muscle mass, or sexual dysfunction. E29.1 sits in the ICD-10-CM chapter for endocrine, nutritional and metabolic diseases (e00-e89), within the section covering disorders of other endocrine glands (e20-e35).
E29.1 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.
Distinguish between primary testicular failure and secondary hypogonadism from pituitary/hypothalamic causes.
HCC Buddy maintains structured V28 and V24 mapping, RAF weights, and MEAT documentation criteria for E29.1 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.
Coding Tips
- •Distinguish between primary testicular failure and secondary hypogonadism from pituitary/hypothalamic causes
- •Document testosterone levels or clinical findings supporting the diagnosis of hypofunction
Excludes 1, Do NOT code together
- postprocedural testicular hypofunction (E89.5)