Q86

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

Header / non-billable

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

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

This code · Q86

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

Sections that reference Q86

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