Q86 ICD-10-CM Code: Congenital malformation syndromes due to known exogenous causes, not elsewhere classified
A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.
Code definition
Official description
Q86Congenital malformation syndromes due to known exogenous causes, not elsewhere classified
ICD-10-CM diagnosis code · United States clinical modification
Classification
Where Q86 sits
- 1
Chapter 17
Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders (Q00-QA1)
- 2
Section
Other congenital malformations (Q80-Q89)
- 3
Category Q86
Congenital malformation syndromes due to known exogenous causes, not elsewhere classified
- 4
Code Q86
Congenital malformation syndromes due to known exogenous causes, not elsewhere classified
More specific choices
Codes under Q86
Q86 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 Q86.
Code first
No “code first” instruction is listed for Q86.
Use additional code
No “use additional code” instruction is listed for Q86.
Excludes1
Conditions that should not be reported together with this code.
No Excludes1 note is listed for Q86.
Excludes2
Conditions not included here that may be reported separately when present.
- iodine-deficiency-related hypothyroidism (E00-E02)
- nonteratogenic effects of substances transmitted via placenta or breast milk (P04.-)
Transparency
Source and release
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 sourceCode-specific guidance
Frequently asked questions
What does ICD-10-CM code Q86 mean?
Q86 is the FY 2027 U.S. ICD-10-CM code for “Congenital malformation syndromes due to known exogenous causes, not elsewhere classified.”
Is Q86 a billable or specific ICD-10-CM code?
No. Q86 has more specific child codes in the FY 2027 reference data. Select the code that matches the documentation and confirm the active code set and payer requirements.
Where is Q86 located in ICD-10-CM?
Q86 is listed in Chapter 17, Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders (Q00-QA1), within Other congenital malformations (Q80-Q89) (Q80–Q89), under category Q86, Congenital malformation syndromes due to known exogenous causes, not elsewhere classified.
What coding notes are listed for Q86?
No inclusion terms are listed for Q86 in this reference record. No code-first instruction is listed. No Excludes1 note is listed. Excludes2 notes: iodine-deficiency-related hypothyroidism (E00-E02); nonteratogenic effects of substances transmitted via placenta or breast milk (P04.-).
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