E29.1 — Testicular hypofunction

E29.1

ICD-10 Chapter 4: Endocrine, Nutritional & Metabolic — illustrative image — Chapter 4: Endocrine, nutritional and metabolic diseases (E00–E89) — illustrative image

What this code means

Testicular hypofunction means the testes produce too little testosterone (and sometimes too few sperm).

Also called: low testosterone, testicular hypofunction, hypogonadism.

When this code is used

Used for testicular hypofunction.

Where it sits in ICD-10-CM

Code E29.1 belongs to Chapter 4: Endocrine, nutritional and metabolic diseases, which covers codes E00–E89 in the FY2027 ICD-10-CM tabular list. The official description above is copied verbatim from the CDC/NCHS FY2027 code file.

Related symptoms

Fatigue

Watch: related videos

▶ WatchSymptoms of male hypogonadism or low testosterone ▶ WatchWhat is hypogonadism

Frequently asked questions

What is ICD-10-CM code E29.1?

E29.1 is the ICD-10-CM diagnosis code for “Testicular hypofunction”. Testicular hypofunction means the testes produce too little testosterone (and sometimes too few sperm).

When is code E29.1 used?

Used for testicular hypofunction. It belongs to Chapter 4 of ICD-10-CM (Endocrine, nutritional and metabolic diseases).

This guide explains ICD-10-CM codes in plain language for patients, students and other readers. It is educational information only — not coding, billing or medical advice. The code recorded for any real encounter is assigned from the full clinical documentation by the treating team and qualified coders, and only they can decide which code fits a specific case.