Billable / Specific Code
ICD-10-CM M21.239 is the diagnosis code for Flexion deformity, unspecified wrist. 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 M21.239 sits in the ICD-10-CM classification helps ensure proper coding:
Yes, M21.239 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
M21.239 is the ICD-10-CM diagnosis code for "Flexion deformity, unspecified wrist". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
The parent code of M21.239 is M21.23 ("Flexion deformity, wrist"). M21.239 provides a more specific classification within this category.
M21.239 is located in Section M20-M25 — "Other joint disorders" within Chapter 13 of the ICD-10-CM Tabular List.
Use M21.239 when the patients documented diagnosis matches "Flexion deformity, unspecified wrist" 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 wrist is M21.239.
Yes, M21.239 can be used as a primary diagnosis code since it is billable and specific.
M21.239 is in Chapter 13 of the ICD-10-CM Tabular List.
Yes, M21.239 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.