Choanal atresia

Instruction Source: Q30.0

Choanal atresia

Instruction Source: Q30

Congenital malformations of nose

Excludes 1 (Mutually Exclusive)

• congenital deviation of nasal septum (Q67.4)

Instruction Source: Q30-Q34

Congenital malformations of the respiratory system (Q30-Q34)

Instruction Source: Q00-QA1

Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders

Excludes 2 (Not Included Here)

• inborn errors of metabolism (E70-E88)

Clinical Notes

• Codes from this chapter are not for use on maternal records