All ICD10 Codes
M26Not billable, use a more specific code below

Dentofacial anomalies [including malocclusion]

In Dentofacial anomalies [including malocclusion] and other disorders of jaw (M26-M27), chapter 13: Diseases of the Musculoskeletal System and Connective Tissue

78 billable codes under M26: none are a CC or MCC; none map to an HCC.

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Instructional notes

Also applies, from Dentofacial anomalies [including malocclusion] and other disorders of jaw (M26-M27)

These notes sit on M26-M27 and apply to every code under it, including M26.

Excludes1: not coded here, use a different code

  • hemifacial atrophy or hypertrophy (Q67.4)
  • unilateral condylar hyperplasia or hypoplasia (M27.8)

Official coding guidelines

From the ICD-10-CM Official Guidelines for Coding and Reporting, FY 2027 (CMS and NCHS). Links open the PDF at the right page.

Covers site and laterality, acute injury versus chronic musculoskeletal conditions, 7th characters for pathologic fractures, osteoporosis with or without current fracture, and multisystem inflammatory syndrome.

Read Section I.C.13 (page 60)

All codes under M26

M26 can't be used on a claim. Pick a billable code below; grey headings group them.

M26 MS-DRGs

This code does not group to an MS-DRG as a principal diagnosis.

Other codes that refer to M26

Notes on these codes point to M26.

  • K08 Excludes2: dentofacial anomalies [including malocclusion] (M26.-)
  • M95 Excludes2: dentofacial anomalies [including malocclusion] (M26.-)
  • Q18 Excludes1: dentofacial anomalies [including malocclusion] (M26.-)
  • Q38 Excludes1: dentofacial anomalies (M26.-)
  • Q67.4 Excludes1: dentofacial anomalies [including malocclusion] (M26.-)
  • Q75 Excludes1: dentofacial anomalies [including malocclusion] (M26.-)

About the condition

Plain-language background from MedlinePlus (National Library of Medicine), not coding guidance.

Facial Injuries and Disorders

Face injuries and disorders can cause pain and affect how you look. In severe cases, they can affect sight, speech, breathing and your ability to swallow. Fractures (broken bones), especially in the bones of your nose, cheekbone and jaw, are common facial injuries.

Read more about facial injuries and disorders on MedlinePlus

Jaw Injuries and Disorders

Your jaw is a set of bones that holds your teeth. It includes: Jaw problems can include:

Read more about jaw injuries and disorders on MedlinePlus

Code history

Valid since FY2016, when ICD-10-CM took effect on October 1, 2015. No changes since.