Q86.8 Other congenital malformation syndromes due to known exogenous causes

Billable ICD-10-CM code, FY2026. Exempt from present-on-admission (POA) reporting.

Applies from Q86 Congenital malformation syndromes due to known exogenous causes, not elsewhere classified

Excludes2 (not included here)

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

MS-DRG index

Defines the logic of DRG(s) 794 in MDC 15.

Approximate ICD-9-CM (GEMs)

• 760.79 Other noxious influences affecting fetus or newborn via placenta or breast milk (approximate)

Diagnosis Index entries for Q86.8

• Dysmorphism (due to) › exogenous cause NEC
• Syndrome › malformation, congenital, due to › exogenous cause NEC

Nearby codes

• Q86 Congenital malformation syndromes due to known exogenous causes, not elsewhere classified
• Q86.0 Fetal alcohol syndrome (dysmorphic)
• Q86.1 Fetal hydantoin syndrome
• Q86.2 Dysmorphism due to warfarin
• Q86.8 Other congenital malformation syndromes due to known exogenous causes (this code)