Billable / Specific Code
ICD-10-CM M26.221 is the diagnosis code for Open posterior occlusal relationship. 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 M26.221 sits in the ICD-10-CM classification helps ensure proper coding:
Yes, M26.221 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
M26.221 is the ICD-10-CM diagnosis code for "Open posterior occlusal relationship". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
The parent code of M26.221 is M26.22 ("Open occlusal relationship"). M26.221 provides a more specific classification within this category.
M26.221 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 M26.221 when the patients documented diagnosis matches "Open posterior occlusal relationship" 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 Open posterior occlusal relationship is M26.221.
Yes, M26.221 can be used as a primary diagnosis code since it is billable and specific.
M26.221 is in Chapter 13 of the ICD-10-CM Tabular List.
Yes, M26.221 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.