HCPCS A7031: Face Mask Interface, Replacement for Full Face Mask

Learn how to properly use and bill for HCPCS code A7031, its documentation and billing requirements, from our short guide.

Use Code

Frequently asked questions

A7031 is for the replacement cushion/interface only for a full face mask. A7030 is for the entire full face mask (frame, cushion, and headgear).

The standard Medicare replacement schedule for A7031 is once per month (1 per month). This is subject to the specific payer's policy.

The denial is often due to missing documentation, exceeding the allowed frequency, or the patient not meeting the required compliance for the base PAP machine. Review the denial reason and resubmit with corrected or additional documentation as needed. An ABN may also be required if non-coverage was anticipated.