The Short Answer
It depends entirely on your state's chiropractic practice act and what your individual payers have contracted for. Some will let you, some won't, and most require additional credentials or a separate NPI before they'll even consider it. I've sat through enough payer audits to know this isn't a simple yes or no. This question comes up more often than you'd think, especially in rural areas where a clinic might try to wear multiple hats. The reality is messier than most people expect. Chiropractors operate under a different coding universe than physical therapists. You're used to 98940 through 98942 for spinal manipulation, maybe 98943 through 98945 if you do extremity work. Physical therapy codes live in the 97xxx range — things like 97110 for therapeutic exercise, 97140 for manual therapy, 97530 for functional skills training. Those aren't interchangeable just because the clinical overlap exists.
On paper, the CPT code set is owned by AMA and technically anyone can use any code if the service was performed. That's not how the real world works though. Payers set their own rules about which providers can bill which codes, and they enforce them through claim edits and audits. I ran into this head-on about three years ago with a provider who was also licensed as an athletic trainer in our state. He wanted to bill 97110 for strengthening exercises on a sports medicine patient who was also seeing him for adjustments. His primary NPI was set up as a chiropractic provider, so the Medicare carrier hit him with a denial citing provider type mismatch. The private workers comp payer went the same way. We ended up switching to 98940 for the manipulation and 97501 for neuromuscular re-education instead — different code but clinically appropriate and clean on both payers. Here's the thing most people skip: you can't just change your NPI or rendering provider type on the claim form to match a PT license. If your DEA, NPPES, and state license records all say chiropractor, the payer's enrollment system will flag it regardless of what you put on the CMS-1500 or electronic equivalent. They cross-reference at multiple levels.
Some states allow chiropractors to perform a defined list of PT modalities — ultrasound, electrical stimulation, traction — and in those states some commercial payers will reimburse those services under the 97xxx codes when billed by a DC. But the moment you touch therapeutic exercise or gait training, you're entering territory where the payer almost certainly expects an PT or OT credential on file. Medicare has been extremely consistent on this. Their Benefit Services Catalog lists exactly which provider types can bill each code, and chiropractors aren't on it for the 97xxx series. Private payers are a different story. I've seen Anthem allow 97110 from a DC in one market and deny it in another, even within the same state. It comes down to the specific contract. If you have an active contract with a commercial plan, pull the provider manual and search for "chiropractic" or "DC" — it'll tell you which codes are covered and under what conditions. If they don't mention it at all, that's usually a de facto no, though calling the provider services line can sometimes get you a definitive answer faster than waiting for a claim edit. C Medicaid programs are uniformly strict. Chiropractors can bill 98940 through 98942 in participating states, but 97xxx codes are out. I've processed enough Medicaid claims to know that even a correctly coded 97110 from a DC gets denied at the gate with a provider type error, not a medical necessity denial. You're not going to fight that one successfully.
Get the Full Details
There's a narrower path that works for some people. If you hold dual licensure — say you're a licensed chiropractor and also a licensed physical therapist — you can bill PT codes under your PT credential. You'd need a separate enrollment in the payer's system under the PT provider type, a separate NPI if the first one is tied exclusively to chiropractic services, and your state license records need to reflect both credentials. This is common in military treatment facilities and some large integrated systems. It's not a loophole, it's just how credentialing works when you actually have both licenses. I had a colleague who did this in Texas where the state allows it. She maintained two active NPIs, one registered as a D.C. and one as a P.T., and her Medicare enrollment reflected both provider types. Claims for 97110 went through without issue when she signed them as the PT. The catch was that her Medicare reimbursement rate for 97110 as a PT was significantly lower than what she could get for 98940 as a DC on the same visit, so she had to weigh the revenue difference against the documentation burden. It added maybe twelve minutes of extra chart time per patient because now you're documenting two distinct scopes of practice in the same encounter. Another edge case that trips people up: outpatient hospital settings. A DC working in an outpatient department might get told by the hospital's billing office that they can bill 97xxx codes under the hospital's NPI. That sounds reasonable until the payer processes the claim and denies it because the attending provider type doesn't match the service line. Hospitals have caught their own coders doing this, and the recoupment letters come fast.
So the practical workflow if you're considering this is straightforward even if the answer is probably no: First, verify your state's chiropractic scope of practice. Is there any language allowing PT-type interventions? Second, pull your top five payers by volume and check their provider manuals for chiropractic billing allowances. Third, call each one and ask specifically: "Can a Doctor of Chiropractic with no PT license bill CPT 97110, 97140, and 97530?" Write down the representative's name and the date. Fourth, check if you hold any additional licenses that would support a separate enrollment. If you don't and your answer from step three is a firm no from your major payers, you're done — stop here. The alternative most clinics end up choosing is straightforward referral. You evaluate the patient, handle the manipulative and joint-specific work, and refer out the therapeutic exercise and functional training portions to a PT. You still see the patient, you still bill your chiropractic codes for what you personally did, and you avoid the entire denial problem. It's less glamorous than building an in-house PT service, but it takes about fifteen minutes to set up and zero audit risk.
What I've learned from processing hundreds of these claims is that the biggest mistake people make is assuming the CPT code defines the service rather than the payer contract. The code set is universal. Who can use which code is entirely contractual and regulatory. Keep them separate in your head and you'll save yourself a lot of headache.
