US · guidance
CMS Pub. 100-04, ch. 30, § 50.5
ABN Standards
The ABN, Form CMS-R-131, is the OMB approved standard written notice. Failure to
use this notice as mandated could result in the notice being invalidated and/or the notifier
being held liable for the items or services in question.
The online replicable copies of the OMB approved ABN (CMS-R-131) and instructions
for notice completion are available on the CMS website at:
http://www.cms.gov/Medicare/Medicare-General- Information/BNI/ABN.html
A. Language Choice
The ABN is available in English and Spanish under a dedicated link on the web page
given above. Notifiers should choose the appropriate version of the ABN based on the
language the beneficiary best understands. Insertions must be in English when the
English language ABN is used. Similarly, when a Spanish language ABN is used, the
notifier should make insertions on the notice in Spanish, if applicable. In addition, verbal
assistance in other languages may be provided to assist beneficiaries in understanding the
document. However, the printed document is limited to the OMB-approved English and
Spanish versions. Notifiers should document any types of translation assistance that are
used in the “Additional Information” section of the notice.
B. Effective Versions
ABNs are effective as of the OMB approval or expiration date given at the bottom of
each notice. The routine approval is for 3-year use. Notifiers are expected to exclusively
use the current version of the ABN. CMS will allow a transition period for healthcare
providers and suppliers to switch from using expiring notices to newly approved notices.
C. General Notice Preparation Requirements
Number of Copies A minimum of two copies, including the
original, should be made so the
beneficiary and notifier each have one.
The notifier should retain the original
whenever possible.
Reproduction Notifiers may reproduce the ABN by
using self-carbonizing paper,
photocopying, digitized technology, or
another appropriate method. All
reproductions should conform to
applicable requirements.
Length and Size of Page The ABN form must not exceed one
page in length; however, attachments
are permitted for listing additional items
and services. If attachments are used,
they should allow for clear matching of
the items or services in question with
the reason and cost estimate
information. The ABN is designed as a
letter- sized form. If necessary, it may
be expanded to a legal-sized page.
Contrast of Paper and Print A visually high-contrast combination of
dark ink on a pale background should be
used. Do not use reversed print (i.e.
white print on black paper), or block-
shaded (highlighted) text.
Font Fonts as they appear in the ABN
downloaded from the CMS web site
should be used. In cases where changes
need to occur, notifiers should use
alternative fonts that are easily
readable, such as Arial, Arial Narrow,
Times New Roman, and Courier.
Any other changes to the font, such as
italics, embossing, bold, etc., should not
be used since they can make the ABN
more difficult to read. The font size
generally should be 12 point. Titles
should be 14-16 point, but insertions in
blanks of the ABN can be as small as 10
point if needed.
Information inserted by notifiers in the
blank spaces on the ABN may be typed
or legibly hand-written.
Customization Notifiers are permitted to do some
customization of ABNs, such as pre-
printing information in certain blanks to
promote efficiency and to ensure clarity
for beneficiaries. Notifiers may develop
multiple versions of the ABN specialized
to common treatment scenarios, using
the required language and general
formatting of the ABN.
Blanks (G)-(I) must be completed by the
beneficiary when the ABN is issued and
should not be pre-filled. Lettering of the
blanks (A-J) should be removed prior to
issuance of an ABN. If pre-printed
information is used to describe
items/services and/or common reasons
for non-coverage, the notifier must
clearly indicate on the ABN which
portions of the pre- printed information
are applicable to the beneficiary
Healthcare providers or suppliers who
pre-print a menu of items or services
may wish to list a cost estimate
alongside each item or service.
Modification The ABN may not be modified except as
specifically allowed by these
instructions.
Notifiers must exercise caution before
adding any customizations beyond these
guidelines, since changing ABNs too
much could result in invalid notice and
healthcare provider or supplier liability
for non-covered charges. Validity
judgments are generally made by
Medicare contractors, usually when
reviewing ABN-related claims; however,
any complaints received may be
investigated by contractors and/or CMS
central or regional offices.
History
(Rev. 10862; Issued: 07-14-21; Effective: 10-14-21; Implementation: 10-14-21)
Provenance
- Source
- cms.gov
- Retrieved
- 2026-08-25
- Edition
- iom-2026-08-25
- Content hash
42084929b956af49032e73fe5a7abadcf68edc6f801b92027b3c82d3f834fbfe
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