Codes

ICD-10 code M99.01 is cervical segmental and somatic dysfunction. Learn when to use it, how to pair it with CMT codes, and documentation for clean claims.

CPT code 98942 bills all five spinal regions and draws the most audit scrutiny. See when it applies, the documentation auditors expect, and 2026 reimbursement.

CPT code 98943 bills extraspinal chiropractic manipulation, and Medicare never covers it. See the five regions, the modifier 59 and GY rules, and how to get paid.

CPT code 98940 covers chiropractic manipulative treatment for 1-2 spinal regions. Learn when to bill it, how it compares to 98941 and 98942, and how to avoid CMT denials.

CPT 98941 is chiropractic manipulative treatment of 3 to 4 spinal regions. Get region-counting rules, the mandatory AT modifier, and 2026 reimbursement.

Quick answers What are the main chiropractic CPT codes? The core is the CMT adjustment family (98940 to 98943), backed by E/M visit codes (99202