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U.S. ICD-10-CM · April 2026

Q56 ICD-10-CM Code: Indeterminate sex and pseudohermaphroditism

A clear reference for the official code description, hierarchy, and related coding information from the April 2026 U.S. release.

Code definition

Official description

Q56

Indeterminate sex and pseudohermaphroditism

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

Classification

Where Q56 sits

  1. 1

    Chapter 17

    Congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)

  2. 2

    Section

    Congenital malformations of genital organs (Q50-Q56)

  3. 3

    Category Q56

    Indeterminate sex and pseudohermaphroditism

  4. 4

    Code Q56

    Indeterminate sex and pseudohermaphroditism

More specific choices

Codes under Q56

Q56 is a non-billable category. Choose the child code that best matches the documented diagnosis.

Documentation details

Notes for this code

Inclusion terms

No inclusion terms are listed for Q56.

Code first

No “code first” instruction is listed for Q56.

Use additional code

No “use additional code” instruction is listed for Q56.

Excludes1

Conditions that should not be reported together with this code.

  • 46,XX true hermaphrodite (Q99.1)
  • androgen insensitivity syndrome (E34.5-)
  • chimera 46,XX/46,XY true hermaphrodite (Q99.0)
  • female pseudohermaphroditism with adrenocortical disorder (E25.-)
  • pseudohermaphroditism with specified chromosomal anomaly (Q96-Q99)
  • pure gonadal dysgenesis (Q99.1)

Excludes2

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

No Excludes2 note is listed for Q56.

Transparency

Source and release

Data release

U.S. ICD-10-CM · April 2026

Effective date

Apr 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.

Review the CDC/NCHS ICD-10-CM source

Code-specific guidance

Frequently asked questions

What does ICD-10-CM code Q56 mean?

Q56 is the April 2026 U.S. ICD-10-CM code for “Indeterminate sex and pseudohermaphroditism.”

Is Q56 a billable or specific ICD-10-CM code?

No. Q56 has more specific child codes in the April 2026 reference data. Select the code that matches the documentation and confirm the active code set and payer requirements.

Where is Q56 located in ICD-10-CM?

Q56 is listed in Chapter 17, Congenital malformations, deformations and chromosomal abnormalities (Q00-Q99), within Congenital malformations of genital organs (Q50-Q56) (Q50–Q56), under category Q56, Indeterminate sex and pseudohermaphroditism.

What coding notes are listed for Q56?

No inclusion terms are listed for Q56 in this reference record. No code-first instruction is listed. Excludes1 notes: 46,XX true hermaphrodite (Q99.1); androgen insensitivity syndrome (E34.5-); chimera 46,XX/46,XY true hermaphrodite (Q99.0); female pseudohermaphroditism with adrenocortical disorder (E25.-); pseudohermaphroditism with specified chromosomal anomaly (Q96-Q99); pure gonadal dysgenesis (Q99.1). No Excludes2 note is listed.

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