ASC denial code N95, MA 109 AND M97

Contractors shall deny services not included on the ASC facility payment files (ASCFS and ASC DRUG files) when billed by ASCs (specialty 49) using the following messages:

• Claim Adjustment Reason Code 8 - The procedure code is inconsistent with the provider type/specialty.

• RA Remark Code N95 - This provider type/provider specialty may not bill this service.

• MSN 26.4 - This service is not covered when performed by this provider.





If there is no approved ASC surgical procedure on the same date for the billing ASC in history, contractors shall return pass-through device claims/line items, brachytherapy claims/line items, drug code (including C9399) claims/line items, and any other ancillary service claims/line items such as radiology procedure claim/line items on the ASCFS list or ASCDRUG list as unprocessable using the following messages:

• Claim Adjustment Reason Code 16 - Claim/service lacks information which is needed for adjudication. Additional information is supplied using remittance advice remark codes whenever appropriate.

• RA Remark Code MA 109 - Claim processed in accordance with ambulatory surgical guidelines.


• RA Remark Code M16 - Please see our Web site, mailings or bulletins for more details concerning this policy/procedure/decision (at contractor discretion).







Contractors shall deny the technical component for all ancillary services on the ASCFS list billed by specialties other than 49 provided in an ASC setting (POS 24) and use the following messages:

• MSN 16.2 – This service cannot be paid when provided in this location/facility.

• Claim Adjustment Reason Code 171 - Payment is denied when performed/billed by this type of provider in this type of facility. Note: Refer to the 835 Healthcare Policy Identification Segment (loop 2110 Service Payment Information REF), if present.

• Remittance Advice Remark Code M97 – Not paid to practitioner when provided in this place of service. Payment included in the reimbursement issued the facility.

• Remittance Advice Remark Code M16 – Please see our Web site, mailings or bulletins for more details concerning this policy/procedure/decision (at contractor discretion).