Q86.8

Other congenital malformation syndromes due to known exogenous causes

Billable code

This code does not map to a risk-adjusting HCC in the loaded models.

Coding notes

Excludes 1 never coded together · Excludes 2 may co-exist

Inherited from Q86Congen malform syndromes due to known exogenous causes, NEC
Excludes 2

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

Inherited from chapter 17Congenital malformations, deformations and chromosomal abnormalities
Excludes 2

inborn errors of metabolism (E70-E88)

Note

Codes from this chapter are not for use on maternal records

Official Guidelines for Q86.8

FY 2026 ›
I.C.17Chapter-specific guidanceChapter 17: Congenital malformations, deformations, and chromosomal abnormalities (Q00-QA1)

Sections that reference Q86.8

Sections whose FY 2026 text names Q86.8, its Q86 category, or a range containing it — the chapter guidance above is the authoritative source.

Find Q86.8 in the alphabetic index

2 index paths lead to this code