Q56Header code — not billable

Indeterminate sex and pseudohermaphroditism

Chapter
17. Congenital malformations, deformations and chromosomal abnormalities
Category
Q56
Effective date
October 1, 2026

Related codes in category Q56

Q56.0Hermaphroditism, not elsewhere classifiedYesQ56.1Male pseudohermaphroditism, not elsewhere classifiedYesQ56.2Female pseudohermaphroditism, not elsewhere classifiedYesQ56.3Pseudohermaphroditism, unspecifiedYesQ56.4Indeterminate sex, unspecifiedYes

Frequently asked questions

What is ICD-10 code Q56?

Q56 is an ICD-10-CM diagnosis code for Indeterminate sex and pseudohermaphroditism.

Is Q56 a billable code?

No. Q56 is a category/header code, not billable on its own — use one of its more specific child codes instead.

What ICD-10-CM chapter is Q56 in?

Q56 falls under Chapter 17: Congenital malformations, deformations and chromosomal abnormalities.

When did Q56 become effective?

Q56 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.

What other codes are related to Q56?

Q56 belongs to category Q56, which includes 5 other codes — see the related codes list on this page.

ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.