M41.126 — Adolescent idiopathic scoliosis, lumbar region

Billable

Is M41.126 billable?

Yes — M41.126 is billable for FY2027. M41.126 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. M41.126 may be submitted for encounters from October 1, 2026 through September 30, 2027.

M41.126 at a glance

Code	M41.126
Description	Adolescent idiopathic scoliosis, lumbar region
Billable	Yes
Code set	ICD-10-CM FY2027
Valid for encounters	October 1, 2026 – September 30, 2027

Which MS-DRGs does M41.126 group to?

M41.126 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.

456Spinal Fusion Except Cervical with Spinal Curvature, Malignancy, or Infection with MCCsurgical
457Spinal Fusion Except Cervical with Spinal Curvature, Malignancy, or Infection with CCsurgical
458Spinal Fusion Except Cervical with Spinal Curvature, Malignancy, or Infection without CC/MCCsurgical

How is M41.126 listed in the Alphabetic Index?

These are the routes through the Alphabetic Index that lead to M41.126. They show the wording a clinician may have documented, which often differs from the Tabular description.

Scoliosis › idiopathic › adolescent › lumbar region (acquired) (postural)

Excludes1 — never code together — inherited from M41

The conditions below can never be reported together with M41.126 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 scoliosis NOS (Q67.5)
congenital scoliosis due to bony malformation (Q76.3)
postural congenital scoliosis (Q67.5)
kyphoscoliotic heart disease (I27.1)

Excludes2 — not included here — inherited from Chapter 13

The conditions below are not part of M41.126, but a patient may have both at the same time. When documentation supports it, M41.126 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)

Excludes2 — not included here — inherited from M41

The conditions below are not part of M41.126, but a patient may have both at the same time. When documentation supports it, M41.126 and the excluded code may both be reported.

postprocedural scoliosis (M96.89)
postradiation scoliosis (M96.5)

How long has M41.126 existed?

M41.126 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.

Which conditions are coded to M41.126?

ICD-10 code for Scoliosis