ICD-10-CM 2027

ICD-10 code for Limitus hallux

Other deformities of toe(s) (acquired)

Header — needs a more specific code

From the official ICD-10-CM alphabetic index entry “Hallux › limitus”. Page updated September 29, 2026.

About coding Limitus hallux

The ICD-10-CM code for Limitus hallux is M20.5X (Other deformities of toe(s) (acquired)).

To report this condition, pick the subcode that matches the documentation: M20.5X1 (right foot), M20.5X2 (left foot) and M20.5X9 (unspecified foot).

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

What is the ICD-10 code for Limitus hallux?: M20.5X — Other deformities of toe(s) (acquired) (a header code; report a more specific subcode).
Is M20.5X billable?: No. M20.5X is a header code. Report one of its more specific subcodes instead.