ICDcodes.org
FY2027

M43.5X4 — Other recurrent vertebral dislocation, thoracic region

Billable

Is M43.5X4 billable?

Yes — M43.5X4 is billable for FY2027. M43.5X4 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. M43.5X4 may be submitted for encounters from October 1, 2026 through September 30, 2027.

M43.5X4 at a glance

CodeM43.5X4
DescriptionOther recurrent vertebral dislocation, thoracic region
BillableYes
Code setICD-10-CM FY2027
Valid for encountersOctober 1, 2026 – September 30, 2027

Which MS-DRGs does M43.5X4 group to?

M43.5X4 sits in MDC 08 and helps define the logic of 3 MS-DRGs (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.

  • 564Other Musculoskeletal System and Connective Tissue Diagnoses with MCCmedical
  • 565Other Musculoskeletal System and Connective Tissue Diagnoses with CCmedical
  • 566Other Musculoskeletal System and Connective Tissue Diagnoses without CC/MCCmedical

How is M43.5X4 listed in the Alphabetic Index?

The Alphabetic Index lists these routes under M43.5, the nearest indexed parent of M43.5X4. Use them to find the family, then select the specific code.

  • Dislocation › recurrent › vertebra (articular)

Excludes1 — never code together — inherited from M43

The conditions below can never be reported together with M43.5X4 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.

  • 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.-)

Excludes1 — never code together — inherited from M43.5

The conditions below can never be reported together with M43.5X4 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.

  • biomechanical lesions NEC (M99.-)

Excludes2 — not included here — inherited from Chapter 13

The conditions below are not part of M43.5X4, but a patient may have both at the same time. When documentation supports it, M43.5X4 and the excluded code may both be reported.

  • 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)

How long has M43.5X4 existed?

M43.5X4 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.

Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.

What other codes are in the M43.5X family? (7)