ICD-10-CM M26.23 is the diagnosis code for Excessive horizontal overlap. This code falls under the section "Dentofacial anomalies [including malocclusion] and other disorders of jaw" within Chapter 13 — Diseases of the musculoskeletal system and connective tissue (M00-M99). It is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
Understanding where M26.23 sits in the ICD-10-CM classification helps ensure proper coding:
Yes, M26.23 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
M26.23 is the ICD-10-CM diagnosis code for "Excessive horizontal overlap". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
The parent code of M26.23 is M26.2 ("Anomalies of dental arch relationship"). M26.23 provides a more specific classification within this category.
M26.23 is located in Section M26-M27 — "Dentofacial anomalies [including malocclusion] and other disorders of jaw" within Chapter 13 of the ICD-10-CM Tabular List.
Use M26.23 when the patients documented diagnosis matches "Excessive horizontal overlap" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.
The ICD-10-CM code for Excessive horizontal overlap is M26.23.
Yes, M26.23 can be used as a primary diagnosis code since it is billable and specific.
M26.23 is in Chapter 13 of the ICD-10-CM Tabular List.
Yes, M26.23 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.