| S56.391 | Other injury of extensor or abductor muscles, fascia and tendons of right thumb at forearm level | NON-BILLABLE CODE |
| S56.391A | Other injury of extensor or abductor muscles, fascia and tendons of right thumb at forearm level, initial encounter | BILLABLE CODE |
| S56.391D | Other injury of extensor or abductor muscles, fascia and tendons of right thumb at forearm level, subsequent encounter | BILLABLE CODE |
| S56.391S | Other injury of extensor or abductor muscles, fascia and tendons of right thumb at forearm level, sequela | BILLABLE CODE |
| S56.392 | Other injury of extensor or abductor muscles, fascia and tendons of left thumb at forearm level | NON-BILLABLE CODE |
| S56.392A | Other injury of extensor or abductor muscles, fascia and tendons of left thumb at forearm level, initial encounter | BILLABLE CODE |
| S56.392D | Other injury of extensor or abductor muscles, fascia and tendons of left thumb at forearm level, subsequent encounter | BILLABLE CODE |
| S56.392S | Other injury of extensor or abductor muscles, fascia and tendons of left thumb at forearm level, sequela | BILLABLE CODE |
| S56.399 | Other injury of extensor or abductor muscles, fascia and tendons of unspecified thumb at forearm level | NON-BILLABLE CODE |
| S56.399A | Other injury of extensor or abductor muscles, fascia and tendons of unspecified thumb at forearm level, initial encounter | BILLABLE CODE |
| S56.399D | Other injury of extensor or abductor muscles, fascia and tendons of unspecified thumb at forearm level, subsequent encounter | BILLABLE CODE |
| S56.399S | Other injury of extensor or abductor muscles, fascia and tendons of unspecified thumb at forearm level, sequela | BILLABLE CODE |
