ICD-10-CM M33 is the diagnosis code for Dermatopolymyositis. This code falls under the section "Systemic connective tissue disorders" 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.
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 M33 sits in the ICD-10-CM classification helps ensure proper coding:
No, M33 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.
M33 is the ICD-10-CM diagnosis code for "Dermatopolymyositis". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
M33 is located in Section M30-M36 — "Systemic connective tissue disorders" within Chapter 13 of the ICD-10-CM Tabular List.
M33 has 4 sub-code(s) that provide more specific detail: M33.0, M33.1, M33.2, M33.9.
Use M33 when the patients documented diagnosis matches "Dermatopolymyositis" 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 Dermatopolymyositis is M33.
No, M33 is non-billable. Use a more specific sub-code for primary diagnosis billing.
M33 is in Chapter 13 of the ICD-10-CM Tabular List.
Yes, M33 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.