E29.0 Testicular hyperfunction

Billable ICD-10-CM code, FY2026.

Applicable to

• Hypersecretion of testicular hormones

Applies from E29 Testicular dysfunction

Excludes1 (never code together)

• androgen insensitivity syndrome (E34.5-)
• azoospermia or oligospermia NOS (N46.0-N46.1)
• isolated gonadotropin deficiency (E23.0)
• Klinefelter's syndrome (Q98.0-Q98.1, Q98.4)

MS-DRG index

Defines the logic of DRG(s) 643-645 in MDC 10.

Approximate ICD-9-CM (GEMs)

• 257.0 Testicular hyperfunction

Code annotations containing back-references to E29.0

Back-references to E29

• Code First: G63 Polyneuropathy in diseases classified elsewhere ("endocrine disease, except diabetes (E00-E07, E15-E16, E20-E34)")

Diagnosis Index entries for E29.0

• Hyperfunction › testicular
• Hypergonadism › testicular (primary) (infantile)
• Hypersecretion › androgen (testicular)
• Hypersecretion › hormone (s) › testicular
• Puberty (development state) › precocious (constitutional) (cryptogenic) (idiopathic) › due to › testicular hyperfunction

Nearby codes

• E29 Testicular dysfunction
• E29.0 Testicular hyperfunction (this code)
• E29.1 Testicular hypofunction
• E29.8 Other testicular dysfunction
• E29.9 Testicular dysfunction, unspecified