Q75.4 ICD-10-CM Code: Mandibulofacial dysostosis

A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.

Official description

Q75.4

Mandibulofacial dysostosis

ICD-10-CM diagnosis code · United States clinical modification

Where Q75.4 sits

  1. 1

    Chapter 17

    Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders (Q00-QA1)

  2. 2

    Section

    Congenital malformations and deformations of the musculoskeletal system (Q65-Q79)

  3. 3

    Category Q75

    Other congenital malformations of skull and face bones

  4. 4

    Code Q75.4

    Mandibulofacial dysostosis

Notes for this code

Inclusion terms

  • Franceschetti syndrome
  • Treacher Collins syndrome

Code first

No “code first” instruction is listed for Q75.4.

Use additional code

No “use additional code” instruction is listed for Q75.4.

Excludes1

Conditions that should not be reported together with this code.

No Excludes1 note is listed for Q75.4.

Excludes2

Conditions not included here that may be reported separately when present.

No Excludes2 note is listed for Q75.4.

Source and release

Data release
U.S. ICD-10-CM · FY 2027
Effective date
Oct 1, 2026

This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.

Frequently asked questions

What does ICD-10-CM code Q75.4 mean?

Q75.4 is the FY 2027 U.S. ICD-10-CM code for “Mandibulofacial dysostosis.”

Is Q75.4 a billable or specific ICD-10-CM code?

Yes. In the FY 2027 reference data used on this page, Q75.4 has no child codes and is presented as a billable/specific code. Always confirm the active code set and payer requirements before use.

Where is Q75.4 located in ICD-10-CM?

Q75.4 is listed in Chapter 17, Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders (Q00-QA1), within Congenital malformations and deformations of the musculoskeletal system (Q65-Q79) (Q65–Q79), under category Q75, Other congenital malformations of skull and face bones.

What coding notes are listed for Q75.4?

Its listed inclusion terms are Franceschetti syndrome; Treacher Collins syndrome. No code-first instruction is listed. No Excludes1 note is listed. No Excludes2 note is listed.