Home / ICD-10-CM / Congenital malformations and deformations of the musculoskeletal system (Q65-Q79)

Q75.001: Craniosynostosis, unspecified type, unilateral

ICD-10-CM code Q75.001

Description revised ยท FY2026

Billable: use this code on claims.

  • Description changed effective October 1, 2025. Before that it read: Craniosynostosis unspecified, unilateral.

Code breakdown

Q75.001

  1. Q75CategoryOther congenital malformations of skull and face bones
  2. 0Character 4Craniosynostosis
  3. 0Character 5Craniosynostosis, unspecified
  4. 1Character 6Craniosynostosis, unspecified type, unilateral

Coding notes

Inclusion terms (from Q75.00)

  • Craniosynostosis NOS

Excludes1 (from Q75)

  • congenital malformation of face NOS (Q18.-)
  • congenital malformation syndromes classified to Q87.-
  • dentofacial anomalies [including malocclusion] (M26.-)
  • musculoskeletal deformities of head and face (Q67.0-Q67.4)
  • skull defects associated with congenital anomalies of brain such as:
  • anencephaly (Q00.0)
  • encephalocele (Q01.-)
  • hydrocephalus (Q03.-)
  • microcephaly (Q02)

Medicare coverage

Q75.001 is listed as a covered diagnosis in 2 Medicare billing and coding articles:

  • A56612 Billing and Coding: CT of the Head
  • A57204 Billing and Coding: MRI and CT Scans of the Head and Neck

Check this code

All FY2026 ICD-10-CM changes

ICD-10-CM codes and descriptions are from the CMS and NCHS code files. Coverage is from the CMS Medicare Coverage Database billing and coding articles.