ICD-10-CM diagnosis code
Q53.12 Ectopic perineal testis, unilateral
- Billable
- Yes, a complete code (FY2026)
- Category
- Q53 Undescended testicle
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Other codes in Q53
14 complete codes in this category.
- Q53.00Ectopic testis, unspecified
- Q53.01Ectopic testis, unilateral
- Q53.02Ectopic testes, bilateral
- Q53.10Unspecified undescended testicle, unilateral
- Q53.111Unilateral intraabdominal testis
- Q53.112Unilateral inguinal testis
- Q53.12Ectopic perineal testis, unilateral
- Q53.13Unilateral high scrotal testis
- Q53.20Undescended testicle, unspecified, bilateral
- Q53.211Bilateral intraabdominal testes
- Q53.212Bilateral inguinal testes
- Q53.22Ectopic perineal testis, bilateral
Documentation tips
- Make sure the note supports every element of the title, “Ectopic perineal testis, unilateral”: each detail in it should be traceable to the history, examination or assessment.
- Code to the highest specificity the documentation supports. If a detail is missing from the note, add it to the note rather than choosing a less specific code by default.
- Check the Tabular List and official guidelines for instructional notes (“code first”, “use additional code”, Excludes1/Excludes2) that apply to Q53.
The international WHO ICD-10 also has Q53, with its inclusion and exclusion notes; titles and detail can differ from ICD-10-CM.
ICD-10-CM is developed by the National Center for Health Statistics (NCHS), Centers for Disease Control and Prevention, U.S. Department of Health and Human Services, and is based on the WHO ICD-10. Codes and titles are reproduced unchanged from the FY2026 code list (effective 1 October 2025). Their use here does not imply endorsement by CDC, HHS or the U.S. Government. Changes effective on or after 1 October 2026 may not be reflected yet; check the current release at cdc.gov or cms.gov before submitting claims.
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