NAME: HCPCS Fourth Modifier Code DESCRIPTION: A fourth modifier to the HCPCS procedure code to make it more specific than the first, second, or third modifier codes to identify the line item procedures for this claim. SHORT NAME: MDFR_CD4 LONG NAME: HCPCS_4TH_MDFR_CD TYPE: CHAR LENGTH: 5 SOURCE: CWF CODE VALUES: - COMMENT: Available for DME line items