US · guidance
CMS Pub. 100-04, ch. 13, § 140.2
Denial Messages for Noncovered Bone Mass Measurements
The contractor shall use the following remittance advice messages and associated codes
when rejecting/denying claims under the conditions described in 140.1. This
CARC/RARC combination is compliant with CAQH CORE Business Scenario Three.
Group Code: PR (if claim is received with a GA modifier) otherwise CO
CARC: 50
RARC: Alert M38 (if ABN was issued) or M27 (if ABN was not issued)
MSN: 16.10 and 36.1 (if ABN was issued) or 36.2 (if ABN was not issued)
NOTE: A/B MACs (A) are not to include MSN 16.10.
History
(Rev. 3650, Issued: 11-10-16, Effective: 02-10-17, Implementation: 02-10-17)
Provenance
- Source
- cms.gov
- Retrieved
- 2026-08-25
- Edition
- iom-2026-08-25
- Content hash
05ca94b2147bed687b1ac249fb329e31dfa1add8cbb6868a31e26fd602a57966
The link goes to the issuing authority’s own document — the one we read to produce this record. Where a source publishes whole titles rather than sections, your browser may need a moment to jump to the provision.
Unofficial copy of government-published law, reproduced from official sources with full provenance. Not an official publication; verify against official sources before relying on it in a filing. Records in the 'guidance' corpus, and only that corpus, are sub-regulatory (interpretive guidelines, survey procedures) and are not binding law. Validity bounds follow each jurisdiction's declared temporalBasis.