Anomalies of jaw-cranial base relationship
Anomalies of jaw-cranial base relationship
M26.1 is a header (parent) code in the ICD-10-CM hierarchy. It is not billable for claim submission. Use one of the billable child codes listed below.
Billable codes in this category
Each of the codes below is billable. Choose the one that most accurately describes the patient's diagnosis.
M26.10 identifies an anomaly in the spatial relationship between the jaw and the cranial base where the specific nature of the anomaly has not been documented or determined.
M26.11 classifies documented asymmetry of the maxilla as an anomaly of the jaw-cranial base relationship, distinct from generalized jaw size anomalies or mandibular asymmetry.
M26.12 identifies jaw asymmetry that is not attributable to maxillary asymmetry (M26.11), capturing mandibular laterognathia and other non-maxillary imbalances in jaw-cranial base relationship.
M26.19 captures dentofacial anomalies involving an abnormal spatial relationship between the jaw and the cranial base that don't map to a more specific code in the M26.1x subcategory — including prognathism and retrognathism of either the mandible or maxilla when no other M26.1x code applies.