Alphabetic Index FY2027

M43.1

Spondylolisthesis

FY2027Chapter 13: Diseases of the musculoskeletal system and connective tissue/M40–M43 Deforming dorsopathies

Non-billable headerNot valid on its own. Use one of the more specific codes under it.

M43.1 is a non-billable ICD-10-CM code header for spondylolisthesis. Report a more specific code from it instead. It is part of the FY2027 code set, effective October 1, 2026. The more specific codes under it are M43.10 Spondylolisthesis, site unspecified; M43.11 Spondylolisthesis, occipito-atlanto-axial region; M43.12 Spondylolisthesis, cervical region; M43.13 Spondylolisthesis, cervicothoracic region and 6 more. Its coding notes include 11 Excludes1 entries and 10 Excludes2 entries.

Excludes1

Not coded here. The listed conditions generally should not be reported together.

This code
  • acute traumatic of lumbosacral region (S33.1)
  • acute traumatic of sites other than lumbosacral- code to Fracture, vertebra, by region
  • congenital spondylolisthesis (Q76.2)
Inherited from M43 Other deforming dorsopathies
  • congenital spondylolysis and spondylolisthesis (Q76.2)
  • hemivertebra (Q76.3-Q76.4)
  • Klippel-Feil syndrome (Q76.1)
  • lumbarization and sacralization (Q76.4)
  • platyspondylisis (Q76.4)
  • spina bifida occulta (Q76.0)
  • spinal curvature in osteoporosis (M80.-)
  • spinal curvature in Paget's disease of bone [osteitis deformans] (M88.-)

Excludes2

Not included here. Both codes may be reported if the patient has both conditions.

Also from chapter/block level (10 notes)
Inherited from Chapter 13 Diseases of the musculoskeletal system and connective tissue
  • arthropathic psoriasis (L40.5-)
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • compartment syndrome (traumatic) (T79.A-)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)

Notes

Also from chapter/block level (1 note)
Inherited from Chapter 13 Diseases of the musculoskeletal system and connective tissue
  • Use an external cause code following the code for the musculoskeletal condition, if applicable, to identify the cause of the musculoskeletal condition

More specific codes under M43.1 10