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ICD-10-CM 2027

ICD-10 code for Maldevelopment

Choose a code from the options below based on the documentation.

From the official ICD-10-CM alphabetic index entry “Maldevelopment”. Page updated September 29, 2026.

About coding Maldevelopment

The official ICD-10-CM index doesn't give a single default code for maldevelopment; the code depends on the details below.

More specific Maldevelopment codes (official index)

  • brain Q07.9 — Congenital malformation of nervous system, unspecified
  • colon Q43.9 — Congenital malformation of intestine, unspecified
  • hip Q74.2 — Other congenital malformations of lower limb(s), including pelvic girdle
  • congenital dislocation Q65.2 — Congenital dislocation of hip, unspecified
  • bilateral Q65.1 — Congenital dislocation of hip, bilateral
  • unilateral Q65.0 — Congenital dislocation of hip, unilateral
  • mastoid process Q75.8 — Other specified congenital malformations of skull and face bones
  • middle ear Q16.4 — Other congenital malformations of middle ear
  • except ossicles Q16.4 — Other congenital malformations of middle ear
  • ossicles Q16.3 — Congenital malformation of ear ossicles
  • ossicles Q16.3 — Congenital malformation of ear ossicles
  • spine Q76.49 — Other congenital malformations of spine, not associated with scoliosis
  • toe Q74.2 — Other congenital malformations of lower limb(s), including pelvic girdle

Common questions about Maldevelopment ICD-10 codes

What is the ICD-10 code for brain maldevelopment?

Q07.9 — Congenital malformation of nervous system, unspecified.

What is the ICD-10 code for colon maldevelopment?

Q43.9 — Congenital malformation of intestine, unspecified.

What is the ICD-10 code for hip maldevelopment?

Q74.2 — Other congenital malformations of lower limb(s), including pelvic girdle.

What is the ICD-10 code for mastoid process maldevelopment?

Q75.8 — Other specified congenital malformations of skull and face bones.

What is the ICD-10 code for middle ear maldevelopment?

Q16.4 — Other congenital malformations of middle ear.

What is the ICD-10 code for ossicles maldevelopment?

Q16.3 — Congenital malformation of ear ossicles.

What is the ICD-10 code for spine maldevelopment?

Q76.49 — Other congenital malformations of spine, not associated with scoliosis.