ICD-10-CM M91.2 is the diagnosis code for Coxa plana. This code falls under the section "Chondropathies" within Chapter 13 — Diseases of the musculoskeletal system and connective tissue (M00-M99). It is a non-billable/non-specific ICD-10-CM code that should not be used for reimbursement. A more specific sub-code is required for billing. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
Understanding where M91.2 sits in the ICD-10-CM classification helps ensure proper coding:
No, M91.2 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.
M91.2 is the ICD-10-CM diagnosis code for "Coxa plana". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
The parent code of M91.2 is M91 ("Juvenile osteochondrosis of hip and pelvis"). M91.2 provides a more specific classification within this category.
M91.2 is located in Section M91-M94 — "Chondropathies" within Chapter 13 of the ICD-10-CM Tabular List.
M91.2 has 3 sub-code(s) that provide more specific detail: M91.20, M91.21, M91.22.
Use M91.2 when the patients documented diagnosis matches "Coxa plana" 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 Coxa plana is M91.2.
No, M91.2 is non-billable. Use a more specific sub-code for primary diagnosis billing.
M91.2 is in Chapter 13 of the ICD-10-CM Tabular List.
Yes, M91.2 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.