Billing and Coding: Chiropractic Services

Medicare chiropractic claims must document initial treatment or exacerbation date, the precise spinal location and ICD‑10‑CM level(s) of subluxation (and X‑ray date if used), and categorize treatment as acute, chronic, or maintenance; non‑covered services must not be billed as covered and should use appropriate denial/waiver modifiers (GA/GZ). For CPT codes 98940/98941/98942, append the AT modifier for active/corrective treatment for dates of service on/after Oct 1, 2004 (do not use AT for maintenance) and report other pertinent ICD‑10‑CM codes as required.