Chiropractic CPT code lookup

Four manipulation codes, five spinal regions and one modifier decide almost every chiropractic claim. The count is by region, never by segment — and the region list is shorter and stranger than most people remember.

Ink-and-wash drawing of a spine model beside a reference binder
A spine model and a binder — the two things a region audit comes down to.

The five regions, exactly

RegionWhat counts inside it
CervicalOcciput to C7, and the atlanto-occipital joint
ThoracicT1 to T12, and the costovertebral and costotransverse joints
LumbarL1 to L5
SacralThe sacrum
PelvicThe sacroiliac joint — the pelvic region, not the sacrum itself

Sacral and pelvic are separate regions, which surprises people: adjusting the sacrum and the sacroiliac joint is two regions, not one. Adjusting C2, C5 and C7 is still one.

The AT modifier

Medicare covers chiropractic manipulation only for active treatment of subluxation. Without AT the claim reads as maintenance and is denied; with AT on a record that reads like maintenance, it is a compliance problem rather than a coding one.

98943 is not a Medicare code

Extraspinal manipulation is a legitimate service and a non-covered one. Take it as cash, say so before the visit, and keep the ABN on file rather than discovering the problem at the remittance.

E/M on the same day

A same-day evaluation and management service needs the 25 modifier and needs to survive being read on its own: if you delete the manipulation from the note, is there still a documented E/M service? A re-exam attached to every visit is the pattern reviewers look for. The daily note builder keeps the two separated on the page for exactly this reason.

Red flag — refer out

Manipulation is contraindicated over an unstable segment. Progressive neurological deficit, suspected fracture, cauda equina signs or unexplained weight loss end the visit and start a referral.

CPT is a trademark of the American Medical Association; the summaries here are ours, not the AMA descriptors. Coverage rules vary by payer and by state — your own contract is the authority.

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