M41Scoliosis

M41 is the ICD-10-CM diagnosis code for scoliosis. It belongs to block M40-M43 (deforming dorsopathies) and chapter 13 (diseases of the musculoskeletal system and connective tissue). It is a header code, so it can't be reported by itself; one of its 8 subcodes must be used instead.

To report this condition, pick the subcode that matches the documentation: M41.0 (scoliosis), M41.1 (scoliosis), M41.2 (scoliosis), M41.3 (scoliosis), M41.4 (scoliosis), M41.5 (scoliosis), M41.8 (scoliosis) and M41.9 (unspecified).

Don't report M41 together with the conditions in its Excludes1 note: congenital scoliosis NOS (Q67.5), congenital scoliosis due to bony malformation (Q76.3), postural congenital scoliosis (Q67.5) and kyphoscoliotic heart disease (I27.1).

The conditions in its Excludes2 note aren't part of M41, but may be coded alongside it if the patient has both: postprocedural scoliosis (M96.89) and postradiation scoliosis (M96.5).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.