Common Chiropractic ICD-10 Codes

Chiropractic care helps patients deal with pain, neck stiffness, joint issues and other problems related to the musculoskeletal system. Helping patients is only one part of running a good chiropractic practice. Providers also need to make sure they document each diagnosis properly and use the ICD-10 codes when sending insurance claims.

Using the inaccurate ICD 10 CM code can lead to claim denials. It can also cause delayed payments and more work for the office staff. Even a small mistake, like picking a code when a specific one exists can change how an insurance company looks at a claim.

Knowing the common ICD-10 codes used in chiropractic care helps providers describe patient conditions accurately. It also helps them link diagnoses with the services they provide. It makes sure their documentation meets insurance rules.

This guide looks at the frequently used chiropractic diagnosis codes. These include codes for dysfunction, neck pain lower back pain, radiculopathy and joint conditions. It also explains how these codes connect with CPT codes Medicare coverage, modifiers and typical billing mistakes.

What Are Chiropractic ICD-10 Codes?

Chiropractic ICD-10 codes are diagnosis codes used to identify the medical issues that are evaluated or treated during a visit to a chiropractor.

In the United States, chiropractors use the International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM) to report diagnoses on healthcare denial claims.

For example, when a patient visits a chiropractor because of neck pain, the provider may document M54.2 (Cervicalgia). If the examination also identifies segmental and somatic dysfunction of the cervical spine, M99.01 may be appropriate when supported by clinical findings.

These codes perform different purposes. One describes the patient’s neck pain, while the other identifies a specific type of spinal dysfunction.

Accurate chiropractic coding helps show how a patient’s condition, the treatment plan and the services billed all fit together. Accurate chiropractic coding is useful for keeping records clear. With a recognized diagnosis code insurance coverage does not automatically happen. A recognized diagnosis code is not a guarantee of payment.

Most Common Chiropractic ICD-10 Codes

Chiropractors regularly evaluate conditions involving the cervical, thoracic, lumbar, sacral, and pelvic regions. The appropriate code depends on the patient’s symptoms, examination findings, and confirmed diagnosis.

The following table provides a quick reference to frequently used chiropractic ICD-10 codes.

These are commonly relevant diagnosis codes, not a universal list of codes approved by every insurer. The final code selection must reflect the documented clinical condition and the payer’s requirements.

The FY 2027 ICD-10-CM code set took effect on October 1, 2026, and applies to applicable encounters through September 30, 2027. Providers should use the code set corresponding to the date of service.

Chiropractic ICD-10 Codes for Spinal Subluxation and Somatic Dysfunction

Spinal dysfunction is one of the most important diagnosis categories in chiropractic care.

The ICD-10-CM category M99 covers biomechanical lesions not elsewhere classified. Within this category, the M99.0 code family identifies segmental and somatic dysfunction in specific body regions.

These diagnoses may be relevant when clinical findings demonstrate abnormal joint mechanics, restricted movement, or other documented dysfunction.

M99.0 Code Family: Segmental and Somatic Dysfunction

These codes distinguish the anatomical region affected by the documented dysfunction.

Cervical Dysfunction – M99.01

M99.01 identifies segmental and somatic dysfunction of the cervical region.

A chiropractor may consider this code when an examination identifies restricted cervical movement or other qualifying dysfunction. For example, a patient may report neck stiffness after prolonged computer use, and the examination may reveal abnormal cervical joint mobility.

The provider must document the dysfunction rather than assigning M99.01 simply because the patient reports neck pain.

Thoracic Dysfunction – M99.02

M99.02 describes dysfunction affecting the thoracic region.

Patients may complain of upper or middle back discomfort, stiffness, or movement restrictions. If the examination establishes thoracic segmental dysfunction, this code may be appropriate.

Pain in the thoracic spine, when separately reportable, may be described using M54.6.

Lumbar Dysfunction – M99.03

M99.03 is frequently relevant in chiropractic practices because lower back complaints are common.

This code identifies segmental and somatic dysfunction of the lumbar region. It may be used when the provider documents lumbar dysfunction supported by examination findings.

If the patient also experiences nonspecific lower back pain, M54.50 may describe the associated symptom when appropriate.

Sacral and Pelvic Dysfunction – M99.04 and M99.05

Sacral and pelvic dysfunction can impact how a person moves. May lead to pain or discomfort in the lower back, pelvis or nearby areas.

The code M99.04 is used for dysfunction in the region. The code M99.05 is for dysfunction in the region.

Even though the sacrum and pelvis are connected in the body these two areas are not the same when it comes to coding. Providers must pick the code that best fits what they find during the examination.

Important: Do not assume that segmental or somatic dysfunction codes are the same as every use of the word “subluxation.” For Medicare claims the exact spinal level must be documented, along, with proper diagnosis criteria and proof that the treatment is medically necessary.

Common Chiropractic ICD-10 Codes for Back Pain

Back pain is one of the reasons people go to a chiropractor for help. It can happen because of muscles issues with the joints changes in the spine, over time or other problems.

The right code to use depends on if the doctor has found a cause or is just writing down a symptom that hasn’t been connected to a clearer diagnosis.

M54.50 – Low Back Pain, Unspecified

M54.50 describes lower back pain when a more specific type of low back pain has not been established.

For example, a patient may report discomfort after lifting heavy objects, but the examination may not identify a definitive underlying condition.

In this situation, M54.50 may be appropriate if supported by the clinical documentation.

However, this code should not replace a more specific confirmed diagnosis merely because it is familiar or commonly used.

M54.6 – Pain in Thoracic Spine

M54.6 identifies pain in the thoracic spine, which is often called the middle or upper back.

Patients might feel discomfort in this area due to posture repeated movements, muscle strain or other medical conditions.

The chiropractor must record where the pain is located how severe it is, how long it has been present and any important findings, from the exam.

M62.830 – Muscle Spasm of Back

M62.830 describes a muscle spasm affecting the back.

A muscle spasm involves an involuntary contraction of muscle tissue and may cause pain, tightness, or reduced movement.

When a patient presents with back muscle spasms, the provider should document the examination findings supporting that diagnosis. Muscle spasm should not be coded solely because the patient describes general tightness.

M47.816 – Lumbar Spondylosis Without Myelopathy or Radiculopathy

M47.816 is used to identify changes in the lumbar spine when there is no myelopathy or radiculopathy present, as part of the condition being coded.

This diagnosis must be supported by evidence. Chiropractors should not assign this code based on the patient’s age or a general complaint of lower back pain.

If imaging results or prior medical records are relevant the documentation must clearly show the diagnosis. Explain how it connects to the patient’s current evaluation.

Chiropractic ICD-10 Codes for Neck Pain and Cervical Conditions

Neck complaints are common, among patients who spend hours working at desks using digital devices or performing repetitive physical activities.

Some patients experience neck pain while others report symptoms extending into the shoulders or arms.

M54.2 – Cervicalgia

M54.2 is the ICD-10-CM code used for cervicalgia, which’s another name for neck pain.

This code can be used when someone has neck pain. There is no clear or more specific diagnosis that explains the problem.

For example a person might have neck pain after sitting at a desk, for a time. If the doctor writes down that the person has neck pain but hasn’t found a cause then M54.2 can be used.

M54.12 – Cervical Radiculopathy

M54.12 is the code used for radiculopathy that affects the neck area.

Radiculopathy in the neck happens when a nerve root in the neck is affected. Signs might be pain that goes down the arm, numbness, a feeling or weakness.

Since many different problems can lead to signs chiropractors need to write down the specific findings, from the exam that show radiculopathy before using this code.

Just having a feeling of tingling in the arm by itself is not enough to say it is radiculopathy.

M47.812 – Cervical Spondylosis Without Myelopathy or Radiculopathy

M47.812 describes spondylosis without associated myelopathy or radiculopathy.

This code can be used when there is evidence of degenerative changes in the cervical spine and the medical records confirm the diagnosis.

Providers must make sure to separate this condition from radiculopathy and other cervical disc disorders. These are conditions and may need different ICD-10-CM codes. Using the code is important, for accurate documentation and billing.

ICD-10 Codes for Sciatica and Radiculopathy in Chiropractic Care

Pain that starts in the back and moves, into the buttocks or legs may mean that a spinal nerve root is irritated or affected. Pain that spreads does not always mean the same thing.

Sciatica and lumbar radiculopathy are words that are connected. They should not be used the same way without looking at the signs a person is showing.

M54.16 is used to identify lumbar radiculopathy. M54.17 is used when the radiculopathy affects the region.

M54.31 is the code for sided sciatica. M54.32 is the code, for sided sciatica.

For example if a patient has pain that travels down the leg and the provider confirms right-sided sciatica then M54.31 would be the correct code to use. If the patient’s symptoms are confirmed as lumbar radiculopathy instead then M54.16 should be used, not M54.31.

The correct code should match the diagnosis. Do not use than one code just to describe the same symptoms. One code should be used to reflect the actual diagnosis.

Chiropractic ICD-10 Codes for Sprains and Other Injuries

Chiropractors may also evaluate patients who have had sports injuries, falls, work-related incidents or motor vehicle accidents.

In these situations diagnosis coding needs focus. Injury codes usually include details, like the body part that was hurt the kind of injury and the stage of treatment being provided.

The seventh character A generally identifies an initial encounter during active treatment of the injury. It does not necessarily mean the patient’s first visit to a particular provider.

Depending on the situation a follow-up visit code or a late effect code may be needed instead.

For example a patient who is getting treatment after a recent lower back ligament sprain might have documentation that supports S33.5XXA. While the body is. Recovering, a code that has the right follow-, up character may be better.

The physician also needs to make sure a ligament sprain is not confused with a muscle or tendon strain. These injuries are not coded the way.

Common Chiropractic CPT Codes and Their Relationship to ICD-10

ICD-10-CM codes explain why a patient needs healthcare services. Current Procedural Terminology (CPT) codes explain what service was done.

For claims both ICD-10-CM codes and CPT codes must match. The diagnosis must support the service that was provided. The documentation must clearly show that the treatment was necessary and appropriate.

Chiropractic Manipulative Treatment CPT Codes

The five spinal regions used for these codes are cervical, thoracic, lumbar, sacral and pelvic.

For example if a chiropractor performs manipulation in the cervical and thoracic regions CPT 98940 generally describes the two-region treatment.

If the chiropractor treats the thoracic and lumbar regions CPT 98941 generally applies.

The number of spinal regions treated determines the appropriate CPT code, not the number of individual vertebrae manipulated.

Medicare covers qualifying manipulative treatment under CPT 98940–98942 subject to its coverage requirements. Extraspinal manipulation, under CPT 98943 is not covered under the Original Medicare benefit.

Other CPT Codes Relevant to Chiropractic Practices

Depending on the services provided, payer rules, and applicable state scope-of-practice laws, chiropractors may encounter the following codes.

These codes are not automatically payable when billed by a chiropractor. Providers must verify insurer coverage, practitioner eligibility, documentation requirements, and whether the service can be separately reported.

For example, routine assessments included in a chiropractic manipulation service should not be billed as separate evaluation and management services without meeting the applicable requirements.

Medicare distinction: Original Medicare does not generally pay chiropractors for these additional diagnostic, evaluation, or therapeutic services under its limited chiropractic benefit. Coverage under commercial insurance or certain other plans may differ.

How Medicare Covers Chiropractic ICD-10 Codes

Medicare has specific requirements for chiropractic services that differ from many commercial insurance policies.

Under Original Medicare Part B, chiropractic coverage is generally limited to medically necessary manual manipulation of the spine to correct a documented subluxation.

The treatment must be active or corrective rather than routine maintenance care.

A chiropractic claim should establish the spinal condition being treated, the location of the subluxation, and the medical necessity of the manipulation.

Primary and Secondary Diagnosis Codes

For Medicare chiropractic claims, the primary diagnosis must identify the qualifying subluxation and its spinal level in accordance with the applicable Medicare requirements.

A secondary diagnosis may describe the associated neuromusculoskeletal condition requiring treatment.

Consider a hypothetical patient with documented lumbar segmental dysfunction and lower back pain. The claim might contain:

This example illustrates how diagnoses may be associated, but it does not establish automatic Medicare coverage. The provider must verify that the diagnosis combination, spinal level, documentation, and treatment meet the applicable Medicare Administrative Contractor (MAC) requirements.

CMS guidance also requires the precise spinal location and level of subluxation to be documented.

Chiropractic Billing Modifiers Explained

Modifiers provide additional information about the service or circumstances of a claim. They can be particularly important when distinguishing covered active treatment from noncovered services.

Why the AT Modifier Matters

The AT modifier plays an important role in Medicare chiropractic billing.

For covered active or corrective spinal treatment, Medicare requires the AT modifier with CPT 98940, 98941, or 98942.

For example, a qualifying spinal manipulation service involving two regions may be submitted as 98940-AT.

However, adding this modifier does not independently establish medical necessity. The patient’s record must demonstrate why active treatment is required and show the condition being treated.

The AT modifier should not be applied to maintenance care. Medicare generally treats spinal manipulation claims submitted without the AT modifier as maintenance therapy and denies them under its coverage rules.

Documentation Requirements for Chiropractic ICD-10 Coding

A correct ICD-10 code is only as reliable as the clinical documentation supporting it.

Insurance companies may review chiropractic records to determine whether the reported diagnosis matches the services performed. Incomplete or inconsistent notes can create problems even when the diagnosis code itself is valid.

Patient History and Symptoms

The clinical record should explain why the patient sought chiropractic care.

For instance, instead of writing only “back pain” the provider should describe its location, onset, severity, and effect on daily activities.

A patient who reports difficulty bending, standing for extended periods, or returning to work provides important clinical context for the treatment plan.

Physical Examination Findings

Examination findings should support the diagnosis reported on the claim.

These may include joint mobility restrictions, tenderness, postural abnormalities, neurological findings, or other clinically relevant observations.

For Medicare, physical examination documentation may use the P.A.R.T. criteria to demonstrate spinal subluxation.

Treatment Plans and Progress Notes

A chiropractic treatment plan should explain the patient’s condition, the intended treatment, and the expected functional improvement.

Follow-up documentation should show how the patient responds to care. This may include changes in pain, mobility, activity tolerance, and other measurable findings.

For example, a patient who initially could not bend comfortably may demonstrate improved lumbar movement after several visits. Documenting that progress helps explain why continued active treatment may be appropriate.

Repeatedly copying identical notes from one visit to another can create documentation concerns, especially when the records do not reflect the patient’s changing condition.

Common Chiropractic Coding Mistakes That Lead to Claim Denials

Chiropractic claim denials are not always caused by incorrect procedure codes. Problems may also arise when the diagnosis, clinical records, modifier, or payer requirements do not align.

Using Unspecified Codes Without Clinical Justification

Unspecified codes may be valid when the available documentation does not support a more detailed diagnosis.

However, using a general code when the provider has established a more specific condition can reduce coding accuracy and may trigger payer questions.

For example, if the clinical documentation confirms lumbar radiculopathy, using a general lower back pain code as the only diagnosis may fail to describe the established condition adequately.

Reporting Diagnoses Without Supporting Evidence

A code should never be chosen simply because it is commonly accepted by insurers.

If the chiropractor reports cervical segmental dysfunction, the documentation should contain examination findings demonstrating that dysfunction.

Assigning a diagnosis without supporting clinical evidence may result in denials, medical record requests, or repayment concerns.

Incorrect Diagnosis Sequencing

The primary diagnosis should follow the applicable coding and payer sequencing requirements.

For Medicare chiropractic services, the qualifying spinal subluxation diagnosis must be appropriately identified. A pain code alone may not satisfy Medicare’s documentation and coverage requirements.

Missing or Incorrect Modifiers

A qualifying Medicare active-treatment claim may be denied when the AT modifier is missing.

Similarly, applying AT to maintenance therapy misrepresents the purpose of treatment. Providers should determine whether treatment is corrective or maintenance-based before submitting the claim.

Billing for Noncovered Services

Not every chiropractic service is covered under Original Medicare.

For example, extraspinal manipulation, therapeutic exercises, and other separately reported services furnished by a chiropractor generally fall outside the Original Medicare chiropractic benefit.

Commercial insurers may offer broader benefits, but providers must verify the patient’s specific policy rather than assuming coverage.

Failure to Document Treatment Progress

When visits continue over an extended period, payers may question whether treatment remains medically necessary.

Progress notes should show the patient’s condition, response to treatment, and reason for continuing care. A consistent treatment schedule by itself is not enough to establish medical necessity.

Common Chiropractic Denial and Remark Codes

Chiropractic practices may receive claim adjustment reason codes (CARCs) and remittance advice remark codes (RARCs) when an insurer denies or adjusts payment.

These codes explain why the claim was processed differently from the amount submitted.

The CO prefix indicates contractual obligation as the claim adjustment group. These codes do not all apply to every chiropractic plan, and some require additional remark codes to explain the particular problem.

For example, CO-50 may indicate a medical necessity concern. The provider should check the denial explanation, documentation, treatment history, and applicable coverage policy before deciding whether to correct or appeal the claim.

CO-197 may arise under an insurance plan with prior authorization requirements, but those requirements must be verified for the particular service and insurer.

RARCs provide additional detail and should be interpreted alongside the CARC rather than in isolation.

How to Improve Chiropractic Coding Accuracy and Reduce Denials

Accurate chiropractic billing begins before a claim reaches the insurance company. A practice needs consistent documentation and a clear understanding of the relationship between diagnosis codes, procedures, and coverage policies.

Providers should confirm the patient’s diagnosis from the actual examination findings rather than relying on codes used during previous visits. They should also verify the ICD-10-CM code’s specificity, connect each service with an appropriate diagnosis, and confirm the documentation supports any modifier reported.

Insurance eligibility and chiropractic benefits should be checked before treatment whenever possible. Some plans place limits on visits, require referrals or authorization, or cover only certain services.

A final claim review can identify errors involving diagnosis sequencing, mismatched procedure codes, missing modifiers, and incomplete patient information.

For practices that need assistance with these processes, NYC Medical Billing helps healthcare providers manage claims submission, coding-related reviews, denial follow-up, and revenue cycle activities.

The goal is not simply to submit claims faster. It is to make sure claims accurately represent the care provided and meet the applicable insurance requirements.

Frequently Asked Questions About Chiropractic ICD-10 Codes

What is the most common ICD-10 code for chiropractors?

There is no single ICD-10 code that applies to every chiropractic visit. Commonly used codes include M99.01 for cervical segmental dysfunction, M99.03 for lumbar segmental dysfunction, M54.2 for neck pain, and M54.50 for unspecified lower back pain. The correct code depends on the patient’s diagnosis and examination findings.

What is the ICD-10 code for chiropractic adjustment?

There is no single ICD-10 code for a chiropractic adjustment because ICD-10-CM identifies diagnoses, not procedures. Chiropractic manipulative treatment is commonly reported using CPT codes 98940, 98941, or 98942 for spinal manipulation. The diagnosis code must describe the condition supporting treatment.

What is the ICD-10 code for lower back pain in chiropractic care?

M54.50 identifies low back pain, unspecified. If the provider documents lumbar segmental and somatic dysfunction, M99.03 may also be relevant. The choice depends on the established diagnosis and the documentation.

What is the ICD-10 code for neck pain?

M54.2 is the ICD-10-CM code for cervicalgia, commonly known as neck pain. Other codes may be appropriate when a more specific cervical condition has been diagnosed.

Can chiropractors use multiple ICD-10 codes on one claim?

Yes. A chiropractic claim may include multiple diagnosis codes when the patient has more than one reportable condition. However, each code must be supported by the clinical documentation, and the diagnoses must follow applicable sequencing and reporting requirements.

Does Medicare cover chiropractic services for back pain?

Original Medicare Part B covers medically necessary manual manipulation of the spine to correct a documented subluxation. General back pain alone does not establish eligibility for the Medicare chiropractic benefit. The treatment must meet applicable Medicare coverage and documentation requirements.

How often are chiropractic ICD-10 codes updated?

ICD-10-CM codes are updated annually, typically on October 1, with additional updates possible during the year. The FY 2027 ICD-10-CM code set became effective October 1, 2026. Chiropractors should verify codes against the version applicable to the date of service.

Final Thoughts

Understanding common chiropractic ICD-10 codes is essential for accurate clinical documentation and efficient insurance claim processing.

Whether a patient is being treated for cervical dysfunction, lumbar pain, sciatica, or another musculoskeletal condition, the diagnosis code should accurately reflect the provider’s clinical findings.

Chiropractors must also understand how ICD-10-CM codes relate to CPT procedures, payer-specific coverage requirements, modifiers, and medical necessity.

Getting these details right can help reduce preventable denials, improve claim accuracy, and support a more reliable revenue cycle.

At NYC Medical Billing, we understand the coding and reimbursement challenges healthcare providers face. With organized documentation, accurate claim preparation, and timely follow-up, chiropractic practices can spend less time addressing administrative problems and more time focusing on patient care.