Billable / Specific Code
ICD-10-CM M13.172 is the diagnosis code for Monoarthritis, not elsewhere classified, left ankle and foot. This code falls under the section "Inflammatory polyarthropathies" 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 M13.172 sits in the ICD-10-CM classification helps ensure proper coding:
Yes, M13.172 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
M13.172 is the ICD-10-CM diagnosis code for "Monoarthritis, not elsewhere classified, left ankle and foot". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
The parent code of M13.172 is M13.17 ("Monoarthritis, not elsewhere classified, ankle and foot"). M13.172 provides a more specific classification within this category.
M13.172 is located in Section M05-M14 — "Inflammatory polyarthropathies" within Chapter 13 of the ICD-10-CM Tabular List.
Use M13.172 when the patients documented diagnosis matches "Monoarthritis, not elsewhere classified, left ankle and foot" 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 Monoarthritis, not elsewhere classified, left ankle and foot is M13.172.
Yes, M13.172 can be used as a primary diagnosis code since it is billable and specific.
M13.172 is in Chapter 13 of the ICD-10-CM Tabular List.
Yes, M13.172 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.