ICD10BillableValid for clinical use
ICD-10 Code E29.1: Testicular hypofunction
Reviewed by HealthAssure Clinical TeamUpdated 26 May 2026
What is this code?
ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Endocrine, nutritional and metabolic diseases (E00-E89).
When is it used?
- May be used when a clinician documents testicular hypofunction in a patient's medical record.
- May appear in hospital records, claims, referrals, and clinical documentation.
- This code can be used as a clinically usable diagnosis entry in standardized coding workflows.
What it does not mean
- A code alone does not explain severity, treatment plan, or outcome.
- A medical code should not be treated as a substitute for a doctor's diagnosis or advice.
Code hierarchy
chapter
4Endocrine, nutritional and metabolic diseases (E00-E89)
block
E20-E35Disorders of other endocrine glands
category
E29Testicular dysfunction
currentE29
Official coding notes
Inclusion terms
- Defective biosynthesis of testicular androgen NOS
- 5-delta-Reductase deficiency (with male pseudohermaphroditism)
- Testicular hypogonadism NOS
Applicable to
- code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5)
Excludes1 (do not code together)
- postprocedural testicular hypofunction (E89.5)
Use additional code
- code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5)
Where you may see this code
You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records.
Related specialists
EndocrinologistGeneral Physician
Related codes
Sibling codes
Coverage-related procedures and services
HCPCS J1071high
INJECTION, TESTOSTERONE CYPIONATE, 1 MG
Source: CMS coverage guidance
HCPCS J3121high
INJECTION, TESTOSTERONE ENANTHATE, 1 MG
Source: CMS coverage guidance
HCPCS J3145high
INJECTION, TESTOSTERONE UNDECANOATE, 1 MG
Source: CMS coverage guidance
CPT 11980high
SUBCUTANEOUS HORMONE PELLET IMPLANTATION (IMPLANTATION OF ESTRADIOL AND/OR TESTOSTERONE PELLETS BENEATH THE SKIN)
Source: CMS coverage guidance
CPT 84410high
TESTOSTERONE; BIOAVAILABLE, DIRECT MEASUREMENT (EG, DIFFERENTIAL PRECIPITATION)
Source: CMS coverage guidance
CPT 96372high
THERAPEUTIC, PROPHYLACTIC, OR DIAGNOSTIC INJECTION (SPECIFY SUBSTANCE OR DRUG); SUBCUTANEOUS OR INTRAMUSCULAR
Source: CMS coverage guidance
Mapped diagnoses and classifications
SNOMED_CT 1231281009high
46,XY disorder of sex development due to isolated 17,20-lyase deficiency
Source: SNOMED International ICD-10 map
SNOMED_CT 236811002high
Acquired testicular failure
Source: SNOMED International ICD-10 map
SNOMED_CT 38825009high
Deficiency of testosterone biosynthesis
Source: SNOMED International ICD-10 map
SNOMED_CT 1186860003high
Environmental toxin-induced male infertility
Source: SNOMED International ICD-10 map
SNOMED_CT 267403002high
Eunuchism
Source: SNOMED International ICD-10 map
SNOMED_CT 721233005high
Hypergonadotropic hypogonadism with cataract syndrome
Source: SNOMED International ICD-10 map
Related concepts
SNOMED_CT 718714006medium
Deafness and hypogonadism syndrome
Source: SNOMED International ICD-10 map
SNOMED_CT 48130008medium
Hypogonadism
Source: SNOMED International ICD-10 map
SNOMED_CT 733092009medium
Microcephalus, hypergonadotropic hypogonadism, short stature syndrome
Source: SNOMED International ICD-10 map
SNOMED_CT 1381305001medium
Normogonadotropic hypogonadism
Source: SNOMED International ICD-10 map
SNOMED_CT 719275009medium
Primary hypergonadotropic hypogonadism and partial alopecia syndrome
Source: SNOMED International ICD-10 map
SNOMED_CT 370999003medium
Primary hypogonadism
Source: SNOMED International ICD-10 map
Coding guidelines
Compatibility
Legacy and official ICD code match exactly.
Legacy codes
E29.1
Common synonyms
Testicular hypofunction
Frequently asked questions
About this content
This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.