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Q86

Non-billable

Congenital malformation syndromes due to known exogenous causes, not elsewhere classified

Q86 is the ICD-10-CM code for Congenital malformation syndromes due to known exogenous causes, not elsewhere classified. It is a non-billable category code — use a more specific child code such as Q86.0 for billing.

Status
Header (non-billable)
Chapter
Q00-Q99
Subcodes
4
Edition
FY2026

Q00-Q99 Congenital malformations, deformations and chromosomal abnormalities

Excludes2 — not included here

  • •iodine-deficiency-related hypothyroidism (E00-E02)
  • •nonteratogenic effects of substances transmitted via placenta or breast milk (P04.-)

Frequently asked questions

What is ICD-10 code Q86?
Q86 is the ICD-10-CM code for "Congenital malformation syndromes due to known exogenous causes, not elsewhere classified". It falls under Q00-Q99 Congenital malformations, deformations and chromosomal abnormalities.
Is Q86 a billable code?
No — Q86 is a non-billable header code. Use a more specific child code (such as Q86.0) for billing.
What are the subcodes of Q86?
Q86 has 4 more specific child codes, including Q86.0, Q86.1, Q86.2.

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

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