The ABN Guide: When You Need One and How to Fill Out the 2026 CMS-R-131

WHAT YOU GET

A yes/no decision flow for Medicare ABNs and a field-by-field walkthrough of the 2026 form, plus an editable ABN tracking log and pre-bill checklist.

FILES

- 03-ABN-Guide.pdf: full-color guide, 7 pages, US Letter

- 03-ABN-Guide-PrintFriendly.pdf: the same 7 pages in low-ink black and white

- editable/ABN-Guide-Checklists.docx: Word template

- editable/ABN-Tracking-Log.docx: Word template

- README.txt: quick start and license

PAGE COUNT

7 pages (guide, US Letter), plus 2 editable Word templates

FORMAT

US Letter (8.5 x 11 in). PDF (full color and print-friendly black and white) and editable Microsoft Word .docx (also opens in Google Docs and LibreOffice). Delivered as one .zip file.

Instant digital download: your download link appears right after checkout and is emailed to you. No physical item is shipped.

HOW TO EDIT THE WORD FILES

1. Download and unzip the file on a computer.

2. Open any .docx file in Microsoft Word, Google Docs (File > Open > Upload) or free LibreOffice.

3. Optional: click the small header line at the top of the page and type your practice name, or leave it as-is. The templates look finished either way.

4. Type into the tables or edit any wording for your office, then save and print at 100% (actual size).

WHAT'S INSIDE

- Yes/no decision flow: required vs voluntary ABN

- Field-by-field walkthrough of the 2026 ABN (CMS-R-131) based on current CMS instructions

- Special situations: dual-eligible and QMB patients, refusals, repeat services

- GA, GZ, GY and GX modifiers in one table

- Fictional worked examples

- Links to the official CMS form (the form itself is not reproduced)

LICENSE

Print and copy these files for use inside your own practice (one practice). Please do not resell or redistribute them.

PLEASE NOTE

Educational use only. Not legal, billing, coding or medical advice. Rules change and vary by Medicare Administrative Contractor (MAC), state and payer, so confirm with the official sources listed in the file. All examples are fictional. Not affiliated with or endorsed by CMS, HHS, X12 or any payer. CPT(R) is a registered trademark of the American Medical Association; code descriptions are short paraphrases.

AI DISCLOSURE: I wrote this with the help of AI tools and checked it against the official sources listed in the file.

(c) 2026 Clinic Revenue Guidess