ICD-10-CM
ICD-10 code for Retrognathia, retrognathism (mandibular) (maxillary): M26.19
The ICD-10-CM index points "Retrognathia, retrognathism (mandibular) (maxillary)" to M26.19, Other specified anomalies of jaw-cranial base relationship. M26.19 is a billable code.
Source: CDC ICD-10-CM FY2027 order file dated June 16, 2026. Publisher page
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