What M26 covers · when clinicians use it
ICD-10 code M26 identifies Dentofacial anomalies [including malocclusion] in the U.S. ICD-10-CM clinical and billing record set. It sits within the Musculoskeletal System chapter (M00–M99), the section that groups related diagnoses so providers, payers, and public-health agencies report them consistently. Clinicians and medical coders apply M26 when an encounter's findings match the Dentofacial anomalies [including malocclusion] description, attaching it to the patient record so downstream insurance claims, payer audits, quality reporting, and epidemiological surveillance all reference the same standardized diagnosis. The ICD-10-CM is maintained by the Centers for Medicare & Medicaid Services and the CDC's National Center for Health Statistics, with an updated official code set released each U.S. fiscal year — always verify M26 against the current CMS/CDC release and your payer's documentation guidance before final use. This page summarizes documentation context for M26 and is a coding reference, not clinical, diagnostic, or billing advice.
M26 refers to Dentofacial anomalies [including malocclusion], which includes structural misalignments of the jaws and teeth (such as malocclusion) as well as pathological conditions affecting the jawbones themselves. These disorders may impact chewing, speaking, facial appearance, and overall oral health.
Symptoms
- Misaligned teeth or bite – Typical of malocclusions (M26)
- Facial asymmetry – Can result from dentofacial anomalies or jaw abnormalities
- Jaw pain or dysfunction – Particularly in TMJ-related jaw conditions (M27)
- Difficulty chewing or speaking – Due to misalignment or jaw pathology
- Swelling, cysts, or infection – Potential signs of jawbone diseases
Diagnosis
Diagnosis of Dentofacial anomalies [including malocclusion] involves dental examinations, panoramic radiographs (X-rays), cephalometric analysis, CT scans for complex bone pathology, and functional bite assessments by orthodontists or oral surgeons.
ICD10 Code Usage
ICD10 code M26 is used by orthodontists, oral and maxillofacial surgeons, prosthodontists, dentists, and ENT specialists for planning treatments like braces, orthognathic surgery, dental implants, and jaw reconstructions.
Related Codes
FAQs
Q1: What is ICD10 code M26?
A: It refers to Dentofacial anomalies [including malocclusion], covering structural or pathological abnormalities of the jaws and dentition that impair function, aesthetics, or health.
Q2: What are examples of dentofacial anomalies (M26)?
A: Overbites, underbites, crossbites, open bites, and facial skeletal disproportion requiring orthodontic or surgical correction.
Q3: What does M27 cover?
A: M27 includes jawbone cysts, tumors, osteomyelitis (bone infection), and degenerative or traumatic jaw conditions not elsewhere classified.
Q4: How are these conditions treated?
A: Treatments may involve orthodontics (braces), jaw surgery, prosthetic rehabilitation, or management of infection and bone healing.
Q5: Who manages dentofacial and jaw conditions?
A: Dental specialists including orthodontists, oral surgeons, periodontists, and occasionally maxillofacial prosthodontists.
Conclusion
ICD10 code M26 ensures proper documentation and management of Dentofacial anomalies [including malocclusion], guiding dental and surgical interventions aimed at restoring function, aesthetics, and overall oral health.