| M1A.471 | Other secondary chronic gout, right ankle and foot | NON-BILLABLE CODE |
| M1A.4710 | Other secondary chronic gout, right ankle and foot, without tophus (tophi) | BILLABLE CODE |
| M1A.4711 | Other secondary chronic gout, right ankle and foot, with tophus (tophi) | BILLABLE CODE |
| M1A.472 | Other secondary chronic gout, left ankle and foot | NON-BILLABLE CODE |
| M1A.4720 | Other secondary chronic gout, left ankle and foot, without tophus (tophi) | BILLABLE CODE |
| M1A.4721 | Other secondary chronic gout, left ankle and foot, with tophus (tophi) | BILLABLE CODE |
| M1A.479 | Other secondary chronic gout, unspecified ankle and foot | NON-BILLABLE CODE |
| M1A.4790 | Other secondary chronic gout, unspecified ankle and foot, without tophus (tophi) | BILLABLE CODE |
| M1A.4791 | Other secondary chronic gout, unspecified ankle and foot, with tophus (tophi) | BILLABLE CODE |
