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M43.2

Non-billable

Fusion of spine

M43.2 is the ICD-10-CM code for Fusion of spine. It is a non-billable category code — use a more specific child code such as M43.20 for billing.

Status
Header (non-billable)
Chapter
M00-M99
Parent
M43
Subcodes
9
Edition
FY2026

M00-M99 Diseases of the musculoskeletal system and connective tissue

What this means — in plain language

MedlinePlus · NIH

Your backbone, or spine, is made up of 26 bone discs called vertebrae. The vertebrae protect your spinal cord and allow you to stand and bend. A number of problems can change the structure of the spine or damage the vertebrae and surrounding tissue. They include: Infections Injuries Tumors Conditions, such as ankylosing spondylitis and scoliosis Bone changes that come with age, such as spinal stenosis and herniated…

Read more about Spine Injuries and Disorders at MedlinePlus ↗

Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.

Includes

  • •Ankylosis of spinal joint

Excludes1 — not coded here

  • •ankylosing spondylitis (M45.0-)
  • •congenital fusion of spine (Q76.4)

Excludes2 — not included here

  • •arthrodesis status (Z98.1)
  • •pseudoarthrosis after fusion or arthrodesis (M96.0)

Frequently asked questions

What is ICD-10 code M43.2?
M43.2 is the ICD-10-CM code for "Fusion of spine". It falls under M00-M99 Diseases of the musculoskeletal system and connective tissue.
Is M43.2 a billable code?
No — M43.2 is a non-billable header code. Use a more specific child code (such as M43.20) for billing.
What are the subcodes of M43.2?
M43.2 has 9 more specific child codes, including M43.20, M43.21, M43.22.
What is excluded from M43.2?
Excludes1 (not coded here): ankylosing spondylitis (M45.0-); congenital fusion of spine (Q76.4).

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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