Q86.8 ICD-10-CM Code: Other congenital malformation syndromes due to known exogenous causes
Q86.8 is the billable ICD-10-CM code for “Other congenital malformation syndromes due to known exogenous causes” in the FY 2027 U.S. code set, effective Oct 1, 2026.
Official description
Q86.8Other congenital malformation syndromes due to known exogenous causes
ICD-10-CM diagnosis code · United States clinical modification
Where Q86.8 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 Q86.8
Other congenital malformation syndromes due to known exogenous causes
Notes for this code
Inclusion terms
No inclusion terms are listed for Q86.8.
Code first
No “code first” instruction is listed for Q86.8.
Use additional code
No “use additional code” instruction is listed for Q86.8.
Excludes1
Conditions that should not be reported together with this code.
No Excludes1 note is listed for Q86.8.
Excludes2
Conditions not included here that may be reported separately when present.
No Excludes2 note is listed for Q86.8.
Source and release
- Data release
- U.S. ICD-10-CM · FY 2027
- Effective date
- Oct 1, 2026
- Publisher
- Vero Scribe Inc.
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.
Frequently asked questions
What does ICD-10-CM code Q86.8 mean?
Q86.8 is the FY 2027 U.S. ICD-10-CM code for “Other congenital malformation syndromes due to known exogenous causes.”
Is Q86.8 a billable or specific ICD-10-CM code?
Yes. In the FY 2027 reference data used on this page, Q86.8 has no child codes and is presented as a billable/specific code. Always confirm the active code set and payer requirements before use.
Where is Q86.8 located in ICD-10-CM?
Q86.8 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 Q86.8?
No inclusion terms are listed for Q86.8 in this reference record. No code-first instruction is listed. No Excludes1 note is listed. No Excludes2 note is listed.