ICD-10 Code for Spondylolisthesis

The default ICD-10-CM 2027 code for spondylolisthesis (acquired) (degenerative) is M43.10 – Spondylolisthesis, site unspecified. More specific codes depend on the details documented, as listed in the official index (43 codes, 13 billable).

Main code: M43.10 – Spondylolisthesis, site unspecified
Billable: Yes

Index entries for Spondylolisthesis

with disproportion (fetopelvic) – O33.0
- causing obstructed labor – O65.0
cervical region – M43.12
cervicothoracic region – M43.13
congenital – Q76.2
lumbar region – M43.16
lumbosacral region – M43.17
multiple sites – M43.19
occipito-atlanto-axial region – M43.11
sacrococcygeal region – M43.18
thoracic region – M43.14
thoracolumbar region – M43.15
traumatic (old) – M43.10
- acute
  - fifth cervical (displaced) – S12.430 (header)
    - nondisplaced – S12.431 (header)
    - specified type NEC (displaced) – S12.450 (header)
      - nondisplaced – S12.451 (header)
    - type III – S12.44 (header)
  - fourth cervical (displaced) – S12.330 (header)
    - nondisplaced – S12.331 (header)
    - specified type NEC (displaced) – S12.350 (header)
      - nondisplaced – S12.351 (header)
    - type III – S12.34 (header)
  - second cervical (displaced) – S12.130 (header)
    - nondisplaced – S12.131 (header)
    - specified type NEC (displaced) – S12.150 (header)
      - nondisplaced – S12.151 (header)
    - type III – S12.14 (header)
  - seventh cervical (displaced) – S12.630 (header)
    - nondisplaced – S12.631 (header)
    - specified type NEC (displaced) – S12.650 (header)
      - nondisplaced – S12.651 (header)
    - type III – S12.64 (header)
  - sixth cervical (displaced) – S12.530 (header)
    - nondisplaced – S12.531 (header)
    - specified type NEC (displaced) – S12.550 (header)
      - nondisplaced – S12.551 (header)
    - type III – S12.54 (header)
  - third cervical (displaced) – S12.230 (header)
    - nondisplaced – S12.231 (header)
    - specified type NEC (displaced) – S12.250 (header)
      - nondisplaced – S12.251 (header)
    - type III – S12.24 (header)

How to choose the right code

Start with the main term, then pick the indented subterm that matches the documentation (type, cause, site, laterality, episode of care). Always confirm the code in the tabular list: follow its Excludes1/Excludes2, “code first” and “use additional code” notes, and add a 7th character where required.

Source: CDC/NCHS ICD-10-CM FY2027 alphabetic index.