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Specialty billing

Chiropractic billing services

Chiropractic billing is coding each adjustment by the number of spinal regions treated, with the diagnoses and modifiers that show it was active treatment, and claiming it under each plan’s chiropractic rules.

Chiropractic

The regions decide the code

  1. 1–2 regions98940
  2. 3–4 regions98941
  3. 5 regions98942
  4. Outside the spine98943
Medicare pays for active treatment of a subluxation, marked AT.

Try it

Find the manipulation code

Adjustments are coded by the number of spinal regions treated, and the note has to name each one.

Which manipulation code?

2 of 5 regions

Tick each spinal region the note says was treated.

  • 98940AT if active treatment

98940 is one or two spinal regions, 98941 three or four, 98942 five. Medicare pays only for active, corrective treatment of a subluxation, marked with AT; maintenance care isn’t covered.

Why is chiropractic billing hard?

  • Adjustments are coded by region

    Chiropractic manipulative treatment is billed as 98940 (one or two spinal regions), 98941 (three or four) or 98942 (five), with 98943 for regions outside the spine, and the note has to name each region treated.

  • Medicare pays for one service

    Medicare covers only manual manipulation of the spine to correct a subluxation. Exams, X-rays, therapies and extraspinal adjustments aren’t covered when a chiropractor provides them, so the patient pays for those.

  • Active treatment or maintenance

    Medicare pays for active, corrective treatment, marked with the AT modifier. Maintenance care isn’t covered, and the practice can bill the patient for it only with a signed Advance Beneficiary Notice on file (modifier GA).

  • The record has to show the subluxation

    The subluxation is shown by X-ray or by exam: two of pain, asymmetry, range-of-motion change and tissue change, one of them asymmetry or range of motion. The claim also gives the date the course of treatment began.

  • Other services on the same day

    An exam or a therapy billed with an adjustment needs modifier 25 or 59 and a note that shows it was separate, or the payer bundles it into the manipulation.

Chiropractic billing questions

What is the AT modifier in chiropractic billing?
AT tells Medicare that a spinal manipulation was active, corrective treatment of a subluxation. Without it Medicare treats the manipulation as maintenance care, which it doesn’t cover, and denies the claim.
What does Medicare cover for chiropractic care?
Only manual manipulation of the spine to correct a subluxation, billed with 98940, 98941 or 98942. Exams, X-rays, therapies, supplies and extraspinal manipulation aren’t covered when a chiropractor provides them.
When are the GA and GZ modifiers used?
When a service is expected to be denied as not reasonable and necessary, such as maintenance care. GA means the patient signed an Advance Beneficiary Notice, so they can be billed if Medicare denies it; GZ means there is no ABN, and the patient generally can’t be billed.

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