M26Non-billableSave

M26 - Dentofacial anomalies [including malocclusion]

ICD-10-CM Chapter 13: Diseases of the musculoskeletal system and connective tissue · M26-M27 Dentofacial anomalies [including malocclusion] and other disorders of jaw (M26-M27) · Top-level category · FY2027

Coding Guidance

M26 is a non-billable heading. Report one of the 10 more specific codes below.

Includes, Excludes and Coding Notes

Excludes 1 — Not Coded HereFrom M26-M27 Dentofacial anomalies [including malocclusion] and other disorders of jaw (M26-M27)

Mutually exclusive: these conditions are never reported together with this code.

  • hemifacial atrophy or hypertrophy (Q67.4)
  • unilateral condylar hyperplasia or hypoplasia (M27.8)
Excludes 2 — Not Included HereFrom Chapter M00-M99

Not part of this code; report both codes when the patient has both conditions.

  • arthropathic psoriasis (L40.5-)
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • compartment syndrome (traumatic) (T79.A-)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
NotesFrom Chapter M00-M99

Instructional notes from the ICD-10-CM tabular list.

  • Use an external cause code following the code for the musculoskeletal condition, if applicable, to identify the cause of the musculoskeletal condition

Documentation requirements, coding pitfalls and FAQs for conditions coded with M26.