July 3, 2026 · 5 min read

Cervical Spine Coding: ACDF, Corpectomy, and Anterior Instrumentation

Anterior cervical discectomy and fusion (ACDF) is coded from per-interspace building blocks, with instrumentation and devices reported on top — the note must name every interspace.

The ACDF stack

  • 22551 — anterior discectomy with decompression and fusion, first interspace
  • +22552 — each additional interspace

A two-level ACDF (C5-6, C6-7) is 22551 + 22552, not two primary codes. Corpectomy (removing a vertebral body) uses a different family: 63081 / +63082.

Instrumentation and cages are separate

Anterior instrumentation (plate/screws) is separately reportable by the number of vertebral segments (22845–22847). Interbody biomechanical devices/cages have their own add-on (+22853). Structural allograft/autograft bone graft codes are add-ons.

Modifiers

When an access/exposure surgeon co-operates, apply -62 co-surgeon (both document their distinct roles). Most of these add-on codes are -51 exempt. Intraoperative neuromonitoring requires documented use.

Clinical Capture builds the interspace-by-interspace claim and separately captures the instrumentation and cage add-ons that multi-level cervical cases routinely leave off.

This article is educational and not coding, billing, or legal advice. Always verify codes and values against the current CPT®, ICD-10-CM, and CMS Physician Fee Schedule, follow NCCI edits and payer policy, and confirm with a certified coder before submitting a claim. Document only work that was actually performed.

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Clinical Capture reads your note and returns every billable code in billing order with modifiers and supporting ICD-10 diagnoses — plus denial-risk flags and copy-and-paste documentation wording.