M20.4

M20.4: Other hammer toe(s) (acquired)

Non-billable headerICD-10-CM

M20.4 is a non-billable header ICD-10-CM code for other hammer toe(s) (acquired). It cannot be billed on its own: choose one of the more specific child codes below.

Excludes1 inherited from the categories above M20.4

A category’s note binds every code beneath it.

Written on M20: Acquired deformities of fingers and toes

acquired absence of fingers and toes (Z89.-)
congenital absence of fingers and toes (Q71.3-, Q72.3-)
congenital deformities and malformations of fingers and toes (Q66.-, Q68-Q70, Q74.-)

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Code history

Unchanged in every release from FY2024 to FY2027.

Code to one of these instead M20.4

3 child codes. Green means billable.

M20.40Other hammer toe(s) (acquired), unspecified foot
M20.41Other hammer toe(s) (acquired), right foot
M20.42Other hammer toe(s) (acquired), left foot

Other codes under M20

M20.0Deformity of finger(s)
M20.1Hallux valgus (acquired)
M20.2Hallux rigidus
M20.3Hallux varus (acquired)
M20.5Other deformities of toe(s) (acquired)
M20.6Acquired deformities of toe(s), unspecified