Non-Billable / Non-Specific Code
ICD-10-CM M04 is the diagnosis code for Autoinflammatory syndromes. This code falls under the section "Autoinflammatory syndromes" within Chapter 13 â 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.
The following conditions are not included in M04. If the patient has both, code each condition separately:
Understanding where M04 sits in the ICD-10-CM classification helps ensure proper coding:
No, M04 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.
M04 is the ICD-10-CM diagnosis code for "Autoinflammatory syndromes". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
M04 is located in Section M04 â "Autoinflammatory syndromes" within Chapter 13 of the ICD-10-CM Tabular List.
M04 has 4 sub-code(s) that provide more specific detail: M04.1, M04.2, M04.8, M04.9.
Use M04 when the patients documented diagnosis matches "Autoinflammatory syndromes" 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 Autoinflammatory syndromes is M04.
No, M04 is non-billable. Use a more specific sub-code for primary diagnosis billing.
M04 is in Chapter 13 of the ICD-10-CM Tabular List.
Yes, M04 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.