US · guidance
CMS Pub. 100-04, ch. 4, § 300.5
General Claims Processing Information
This benefit is payable for beneficiaries who have diabetes or renal disease. Contractors
are urged to perform data analysis of these services in your jurisdiction. If you determine
that a potential problem exists, you should verify the cause of the potential error by
conducting an error validation review as described in the Program Integrity Manual
(PIM), Chapter 3, Section 2A. Where errors are verified, initiate appropriate corrective
actions found in the PIM, Chapter 3, Sections 3 through 6. If no diagnosis is on the
claim, return the claim as unprocessable. If the claim does not contain a diagnosis of
diabetes or renal disease, then deny the claim under Section 1862(a)(1)(A) of the Act.
A. Special Requirements for A/B MACs (B)
• Registered dietitians and nutrition professionals can be part of a group practice in
which case the provider identification number of the registered dietitian or
nutrition professional that performed the service must be entered in on the claim
form.
• The specialty code for “dietitians/nutritionists” is 71.
B. Medicare Summary Notices (MSNs)
• Use the following MNT messages where appropriate. If you locate a more
appropriate message, then you should use it.
• If a claim for MNT is submitted with dates of service before January 1,
2002, use MSN 21.11 (This service was not covered by Medicare at the
time you received it). The Spanish version is ‘Este servicio no estaba
cubierto por Medicare cuando usted lo recibio.’
• If a claim for MNT is submitted by a provider that does not meet the
criteria use MSN 21.18 (This item or service is not covered when
performed or ordered by this provider). The Spanish version is ‘Este
servicio no esta cubierto cuando es ordenado o rendido por este
proveedor.’
C. A/B MAC (A) Special Billing Instructions
MNT Services can be billed to A/B MACs (A) when performed in an outpatient hospital
setting. The Hospital outpatient departments can bill for the MNT services through the
A/B MAC (A) if the nutritionists or registered dietitians reassign their benefits to the
hospital. If the hospitals do not get the reassignments the nutritionists and the registered
dietitians will have to bill the Medicare A/B MAC (B) under their own provider number
or the hospital will have to bill the Medicare A/B MAC (B).
NOTE: Nutritionists and registered dietitians must obtain a Medicare provider number
before they can reassign their benefits.
The only applicable bill types are 13X, 23X, 32X, and 85X.
History
(Rev.11504, Issued 07-21-22; Effective:01-10-23; Implementation: 01-03-23)
Provenance
- Source
- cms.gov
- Retrieved
- 2026-08-25
- Edition
- iom-2026-08-25
- Content hash
185eed2dbcb7ed96707716523b6239577bbbf339581442170b94639a18c0f904
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