E29.1 ICD-10-CM Code: Testicular hypofunction

E29.1 is the billable ICD-10-CM code for “Testicular hypofunction” in the FY 2027 U.S. code set, effective Oct 1, 2026.

Official description

E29.1

Testicular hypofunction

ICD-10-CM diagnosis code · United States clinical modification

Where E29.1 sits

  1. 1

    Chapter 4

    Endocrine, nutritional and metabolic diseases (E00-E89)

  2. 2

    Section

    Disorders of other endocrine glands (E20-E35)

  3. 3

    Category E29

    Testicular dysfunction

  4. 4

    Code E29.1

    Testicular hypofunction

Notes for this code

Inclusion terms

  • Defective biosynthesis of testicular androgen NOS
  • 5-Alpha-reductase deficiency (with male pseudohermaphroditism)
  • Testicular hypogonadism NOS

Code first

No “code first” instruction is listed for E29.1.

Use additional code

  • code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5)

Excludes1

Conditions that should not be reported together with this code.

  • postprocedural testicular hypofunction (E89.5)

Excludes2

Conditions not included here that may be reported separately when present.

No Excludes2 note is listed for E29.1.

Source and release

Data release
U.S. ICD-10-CM · FY 2027
Effective date
Oct 1, 2026

This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.

Frequently asked questions

What does ICD-10-CM code E29.1 mean?

E29.1 is the FY 2027 U.S. ICD-10-CM code for “Testicular hypofunction.”

Is E29.1 a billable or specific ICD-10-CM code?

Yes. In the FY 2027 reference data used on this page, E29.1 has no child codes and is presented as a billable/specific code. Always confirm the active code set and payer requirements before use.

Where is E29.1 located in ICD-10-CM?

E29.1 is listed in Chapter 4, Endocrine, nutritional and metabolic diseases (E00-E89), within Disorders of other endocrine glands (E20-E35) (E20–E35), under category E29, Testicular dysfunction.

What coding notes are listed for E29.1?

Its listed inclusion terms are Defective biosynthesis of testicular androgen NOS; 5-Alpha-reductase deficiency (with male pseudohermaphroditism); Testicular hypogonadism NOS. No code-first instruction is listed. Additional-code instructions: code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5). Excludes1 notes: postprocedural testicular hypofunction (E89.5). No Excludes2 note is listed.