The Centers for Medicare & Medicaid Services (CMS) definition of NPWT is stated in a DMERC Medical Policy.  The Medical Policy provides comprehensive information about NPWT, including the definition, coding information, documentation requirements, etc. 

The Medical Policy specifies the HCPCS codes for NPWT, which are as follows:

·          E2402 for the therapy unit

·          A6550 for the dressing

·          A7000 for the canister