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Q56

Non-billable

Indeterminate sex and pseudohermaphroditism

Q56 is the ICD-10-CM code for Indeterminate sex and pseudohermaphroditism. It is a non-billable category code — use a more specific child code such as Q56.0 for billing.

Status
Header (non-billable)
Chapter
Q00-Q99
Subcodes
5
Edition
FY2026

Q00-Q99 Congenital malformations, deformations and chromosomal abnormalities

What this means — in plain language

MedlinePlus · NIH

What are birth defects? A birth defect is a problem that happens while a baby is developing in the mother's body. Most birth defects happen during the first 3 months of pregnancy. One out of every 33 babies in the United States is born with a birth defect. A birth defect may affect how the body looks, works, or both. Some birth defects like cleft lip or neural tube defects are structural problems that can be easy to…

Read more about Birth Defects at MedlinePlus ↗

Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.

Excludes1 — not coded here

  • •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)

Frequently asked questions

What is ICD-10 code Q56?
Q56 is the ICD-10-CM code for "Indeterminate sex and pseudohermaphroditism". It falls under Q00-Q99 Congenital malformations, deformations and chromosomal abnormalities.
Is Q56 a billable code?
No — Q56 is a non-billable header code. Use a more specific child code (such as Q56.0) for billing.
What are the subcodes of Q56?
Q56 has 5 more specific child codes, including Q56.0, Q56.1, Q56.2.
What is excluded from Q56?
Excludes1 (not coded here): 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.-).

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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