ICD-10-CM
Also written as: ICD-10-CM — International Classification of Diseases, Tenth Revision, Clinical Modification
The U.S. clinical adaptation of the WHO's ICD-10 coding system, used for billing and documentation of diagnoses including mental and behavioral health disorders.
Full Definition
ICD-10-CM (International Classification of Diseases, Tenth Revision, Clinical Modification) is the standard coding system mandated by the Centers for Medicare & Medicaid Services (CMS) for U.S. healthcare billing and reporting. In behavioral health, F-codes (Chapter 5 of ICD-10-CM) correspond to mental and behavioral disorders, while codes in the Z-category cover psychosocial factors affecting health. Editors must distinguish ICD-10-CM codes from DSM-5-TR diagnostic labels: the two systems are cross-referenced but not always identical in scope or wording. Billing documents, superbills, and electronic health records require accurate ICD-10-CM codes, and editorial accuracy directly affects reimbursement and compliance. ICD-11, adopted by the WHO in 2022, is not yet mandated for U.S. billing.
Usage
Usage note: Always render as 'ICD-10-CM' (with hyphens) in U.S. clinical and billing documents. Do not drop the '-CM' suffix, which distinguishes the U.S. clinical modification from the WHO base version.
In Context
- "The superbill listed the ICD-10-CM code F33.1 for Major Depressive Disorder, recurrent, moderate, alongside the corresponding CPT billing code." — Billing and coding document
- "Editors reviewing electronic health records should verify that ICD-10-CM codes match the narrative diagnoses in the clinical assessment section." — Health information management policy