Is M43.1 a billable ICD-10-CM code?

No. M43.1 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does M43.1 sit in the tabular list?

Diseases of the musculoskeletal system and connective tissue (M00-M99), in the block Deforming dorsopathies (M40-M43).

What cannot be coded together with M43.1?

M43.1 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.

M43.1

M43.1 — Spondylolisthesis

Non-billable headerICD-10-CM

M43.1 is a non-billable header ICD-10-CM code for spondylolisthesis. It cannot be billed on its own: choose one of the more specific child codes below.

Excludes1 — never code together

These conditions cannot occur together. Billing both on the same encounter is a denial.

acute traumatic of lumbosacral region (S33.1)
acute traumatic of sites other than lumbosacral- code to Fracture, vertebra, by region
congenital spondylolisthesis (Q76.2)

Other codes that can never be billed with M43.1

These codes carry an Excludes1 note pointing at M43.1. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading M43.1 alone.

M43.0Spondylolysis
Q76.2Congenital spondylolisthesis

Risk adjustment

M43.1 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.

Code to one of these instead M43.1

10 child codes. Green means billable.

Related codes at this level

Codes that share M43. If M43.1 is not quite right, the correct code is usually one of these.

Questions about M43.1

Is M43.1 a billable ICD-10-CM code?: No. M43.1 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does M43.1 sit in the tabular list?: Diseases of the musculoskeletal system and connective tissue (M00-M99), in the block Deforming dorsopathies (M40-M43).
What cannot be coded together with M43.1?: M43.1 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.