ICD-10-CM 2027
ICD-10 code for spondylolisthesis
From the official ICD-10-CM alphabetic index entry “Spondylolisthesis (acquired) (degenerative)”. Page updated September 29, 2026.
About coding spondylolisthesis
The ICD-10-CM code for spondylolisthesis is M43.10 (Spondylolisthesis, site unspecified). The official index lists 43 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on M43.10.
Within M43.1, choose M43.10 (site unspecified) only when documentation doesn't support a more specific option: occipito-atlanto-axial region (M43.11), cervical region (M43.12), cervicothoracic region (M43.13), thoracic region (M43.14), thoracolumbar region (M43.15), lumbar region (M43.16), lumbosacral region (M43.17), sacral and sacrococcygeal region (M43.18) and 1 more.
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 551 (Medical Back Problems with MCC, relative weight 1.6358) and DRG 552 (Medical Back Problems without MCC, relative weight 0.9584), in MDC 08 (Diseases and Disorders of the Musculoskeletal System and Connective Tissue), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
More specific spondylolisthesis codes (official index)
- with disproportion (fetopelvic) O33.0 — Maternal care for disproportion due to deformity of maternal pelvic bones
- causing obstructed labor O65.0 — Obstructed labor due to deformed pelvis
- cervical region M43.12 — Spondylolisthesis, cervical region
- cervicothoracic region M43.13 — Spondylolisthesis, cervicothoracic region
- congenital Q76.2 — Congenital spondylolisthesis
- lumbar region M43.16 — Spondylolisthesis, lumbar region
- lumbosacral region M43.17 — Spondylolisthesis, lumbosacral region
- multiple sites M43.19 — Spondylolisthesis, multiple sites in spine
- occipito-atlanto-axial region M43.11 — Spondylolisthesis, occipito-atlanto-axial region
- sacrococcygeal region M43.18 — Spondylolisthesis, sacral and sacrococcygeal region
- thoracic region M43.14 — Spondylolisthesis, thoracic region
- thoracolumbar region M43.15 — Spondylolisthesis, thoracolumbar region
- traumatic (old) M43.10 — Spondylolisthesis, site unspecified
- acute
- fifth cervical (displaced) S12.430 — Unspecified traumatic displaced spondylolisthesis of fifth cervical vertebra
- nondisplaced S12.431 — Unspecified traumatic nondisplaced spondylolisthesis of fifth cervical vertebra
- specified type NEC (displaced) S12.450 — Other traumatic displaced spondylolisthesis of fifth cervical vertebra
- nondisplaced S12.451 — Other traumatic nondisplaced spondylolisthesis of fifth cervical vertebra
- type III S12.44 — Type III traumatic spondylolisthesis of fifth cervical vertebra
- fourth cervical (displaced) S12.330 — Unspecified traumatic displaced spondylolisthesis of fourth cervical vertebra
- nondisplaced S12.331 — Unspecified traumatic nondisplaced spondylolisthesis of fourth cervical vertebra
- specified type NEC (displaced) S12.350 — Other traumatic displaced spondylolisthesis of fourth cervical vertebra
- nondisplaced S12.351 — Other traumatic nondisplaced spondylolisthesis of fourth cervical vertebra
- type III S12.34 — Type III traumatic spondylolisthesis of fourth cervical vertebra
- second cervical (displaced) S12.130 — Unspecified traumatic displaced spondylolisthesis of second cervical vertebra
- nondisplaced S12.131 — Unspecified traumatic nondisplaced spondylolisthesis of second cervical vertebra
- specified type NEC (displaced) S12.150 — Other traumatic displaced spondylolisthesis of second cervical vertebra
- nondisplaced S12.151 — Other traumatic nondisplaced spondylolisthesis of second cervical vertebra
- type III S12.14 — Type III traumatic spondylolisthesis of second cervical vertebra
- seventh cervical (displaced) S12.630 — Unspecified traumatic displaced spondylolisthesis of seventh cervical vertebra
- nondisplaced S12.631 — Unspecified traumatic nondisplaced spondylolisthesis of seventh cervical vertebra
- specified type NEC (displaced) S12.650 — Other traumatic displaced spondylolisthesis of seventh cervical vertebra
- nondisplaced S12.651 — Other traumatic nondisplaced spondylolisthesis of seventh cervical vertebra
- type III S12.64 — Type III traumatic spondylolisthesis of seventh cervical vertebra
- sixth cervical (displaced) S12.530 — Unspecified traumatic displaced spondylolisthesis of sixth cervical vertebra
- nondisplaced S12.531 — Unspecified traumatic nondisplaced spondylolisthesis of sixth cervical vertebra
- specified type NEC (displaced) S12.550 — Other traumatic displaced spondylolisthesis of sixth cervical vertebra
- nondisplaced S12.551 — Other traumatic nondisplaced spondylolisthesis of sixth cervical vertebra
- type III S12.54 — Type III traumatic spondylolisthesis of sixth cervical vertebra
- third cervical (displaced) S12.230 — Unspecified traumatic displaced spondylolisthesis of third cervical vertebra
- nondisplaced S12.231 — Unspecified traumatic nondisplaced spondylolisthesis of third cervical vertebra
- specified type NEC (displaced) S12.250 — Other traumatic displaced spondylolisthesis of third cervical vertebra
- nondisplaced S12.251 — Other traumatic nondisplaced spondylolisthesis of third cervical vertebra
- type III S12.24 — Type III traumatic spondylolisthesis of third cervical vertebra
Common questions about spondylolisthesis ICD-10 codes
What is the ICD-10 code for spondylolisthesis?
- M43.10 — Spondylolisthesis, site unspecified. More specific codes apply when the documentation supports them: O33.0, O65.0, M43.12, M43.13 and others below.
What is the ICD-10 code for cervical region spondylolisthesis?
- M43.12 — Spondylolisthesis, cervical region.
What is the ICD-10 code for cervicothoracic region spondylolisthesis?
- M43.13 — Spondylolisthesis, cervicothoracic region.
What is the ICD-10 code for congenital spondylolisthesis?
- Q76.2 — Congenital spondylolisthesis.
What is the ICD-10 code for lumbar region spondylolisthesis?
- M43.16 — Spondylolisthesis, lumbar region.
What is the ICD-10 code for lumbosacral region spondylolisthesis?
- M43.17 — Spondylolisthesis, lumbosacral region.
What is the ICD-10 code for multiple sites spondylolisthesis?
- M43.19 — Spondylolisthesis, multiple sites in spine.
Is M43.10 billable?
- Yes. M43.10 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can M43.10 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict M43.10 as a principal diagnosis.
Is M43.10 a CC or MCC?
- No. M43.10 is neither a CC nor an MCC under MS-DRG v44.0.