Billable / Specific Code
ICD-10-CM M21.249 is the diagnosis code for Flexion deformity, unspecified finger joints. This code falls under the section "Other joint disorders" 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.
Always refer to the official ICD-10-CM Tabular List for complete coding guidelines. Ensure documentation supports the specificity of the code selected. When in doubt, consult a certified medical coder or the latest CMS guidelines.
Understanding where M21.249 sits in the ICD-10-CM classification helps ensure proper coding:
Yes, M21.249 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
M21.249 is the ICD-10-CM diagnosis code for "Flexion deformity, unspecified finger joints". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
The parent code of M21.249 is M21.24 ("Flexion deformity, finger joints"). M21.249 provides a more specific classification within this category.
M21.249 is located in Section M20-M25 — "Other joint disorders" within Chapter 13 of the ICD-10-CM Tabular List.
Use M21.249 when the patients documented diagnosis matches "Flexion deformity, unspecified finger joints" 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 Flexion deformity, unspecified finger joints is M21.249.
Yes, M21.249 can be used as a primary diagnosis code since it is billable and specific.
M21.249 is in Chapter 13 of the ICD-10-CM Tabular List.
Yes, M21.249 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.