| M1A.40 | Other secondary chronic gout, unspecified site | NON-BILLABLE CODE |
| M1A.40X0 | Other secondary chronic gout, unspecified site, without tophus (tophi) | BILLABLE CODE |
| M1A.40X1 | Other secondary chronic gout, unspecified site, with tophus (tophi) | BILLABLE CODE |
| M1A.41 | Other secondary chronic gout, shoulder | NON-BILLABLE CODE |
| M1A.411 | Other secondary chronic gout, right shoulder | NON-BILLABLE CODE |
| M1A.4110 | Other secondary chronic gout, right shoulder, without tophus (tophi) | BILLABLE CODE |
| M1A.4111 | Other secondary chronic gout, right shoulder, with tophus (tophi) | BILLABLE CODE |
| M1A.412 | Other secondary chronic gout, left shoulder | NON-BILLABLE CODE |
| M1A.4120 | Other secondary chronic gout, left shoulder, without tophus (tophi) | BILLABLE CODE |
| M1A.4121 | Other secondary chronic gout, left shoulder, with tophus (tophi) | BILLABLE CODE |
| M1A.419 | Other secondary chronic gout, unspecified shoulder | NON-BILLABLE CODE |
| M1A.4190 | Other secondary chronic gout, unspecified shoulder, without tophus (tophi) | BILLABLE CODE |
| M1A.4191 | Other secondary chronic gout, unspecified shoulder, with tophus (tophi) | BILLABLE CODE |
| M1A.42 | Other secondary chronic gout, elbow | NON-BILLABLE CODE |
| M1A.421 | Other secondary chronic gout, right elbow | NON-BILLABLE CODE |
| M1A.4210 | Other secondary chronic gout, right elbow, without tophus (tophi) | BILLABLE CODE |
| M1A.4211 | Other secondary chronic gout, right elbow, with tophus (tophi) | BILLABLE CODE |
| M1A.422 | Other secondary chronic gout, left elbow | NON-BILLABLE CODE |
| M1A.4220 | Other secondary chronic gout, left elbow, without tophus (tophi) | BILLABLE CODE |
| M1A.4221 | Other secondary chronic gout, left elbow, with tophus (tophi) | BILLABLE CODE |
| M1A.429 | Other secondary chronic gout, unspecified elbow | NON-BILLABLE CODE |
| M1A.4290 | Other secondary chronic gout, unspecified elbow, without tophus (tophi) | BILLABLE CODE |
| M1A.4291 | Other secondary chronic gout, unspecified elbow, with tophus (tophi) | BILLABLE CODE |
| M1A.43 | Other secondary chronic gout, wrist | NON-BILLABLE CODE |
| M1A.431 | Other secondary chronic gout, right wrist | NON-BILLABLE CODE |
| M1A.4310 | Other secondary chronic gout, right wrist, without tophus (tophi) | BILLABLE CODE |
| M1A.4311 | Other secondary chronic gout, right wrist, with tophus (tophi) | BILLABLE CODE |
| M1A.432 | Other secondary chronic gout, left wrist | NON-BILLABLE CODE |
| M1A.4320 | Other secondary chronic gout, left wrist, without tophus (tophi) | BILLABLE CODE |
| M1A.4321 | Other secondary chronic gout, left wrist, with tophus (tophi) | BILLABLE CODE |
| M1A.439 | Other secondary chronic gout, unspecified wrist | NON-BILLABLE CODE |
| M1A.4390 | Other secondary chronic gout, unspecified wrist, without tophus (tophi) | BILLABLE CODE |
| M1A.4391 | Other secondary chronic gout, unspecified wrist, with tophus (tophi) | BILLABLE CODE |
| M1A.44 | Other secondary chronic gout, hand | NON-BILLABLE CODE |
| M1A.441 | Other secondary chronic gout, right hand | NON-BILLABLE CODE |
| M1A.4410 | Other secondary chronic gout, right hand, without tophus (tophi) | BILLABLE CODE |
| M1A.4411 | Other secondary chronic gout, right hand, with tophus (tophi) | BILLABLE CODE |
| M1A.442 | Other secondary chronic gout, left hand | NON-BILLABLE CODE |
| M1A.4420 | Other secondary chronic gout, left hand, without tophus (tophi) | BILLABLE CODE |
| M1A.4421 | Other secondary chronic gout, left hand, with tophus (tophi) | BILLABLE CODE |
| M1A.449 | Other secondary chronic gout, unspecified hand | NON-BILLABLE CODE |
| M1A.4490 | Other secondary chronic gout, unspecified hand, without tophus (tophi) | BILLABLE CODE |
| M1A.4491 | Other secondary chronic gout, unspecified hand, with tophus (tophi) | BILLABLE CODE |
| M1A.45 | Other secondary chronic gout, hip | NON-BILLABLE CODE |
| M1A.451 | Other secondary chronic gout, right hip | NON-BILLABLE CODE |
| M1A.4510 | Other secondary chronic gout, right hip, without tophus (tophi) | BILLABLE CODE |
| M1A.4511 | Other secondary chronic gout, right hip, with tophus (tophi) | BILLABLE CODE |
| M1A.452 | Other secondary chronic gout, left hip | NON-BILLABLE CODE |
| M1A.4520 | Other secondary chronic gout, left hip, without tophus (tophi) | BILLABLE CODE |
| M1A.4521 | Other secondary chronic gout, left hip, with tophus (tophi) | BILLABLE CODE |
| M1A.459 | Other secondary chronic gout, unspecified hip | NON-BILLABLE CODE |
| M1A.4590 | Other secondary chronic gout, unspecified hip, without tophus (tophi) | BILLABLE CODE |
| M1A.4591 | Other secondary chronic gout, unspecified hip, with tophus (tophi) | BILLABLE CODE |
| M1A.46 | Other secondary chronic gout, knee | NON-BILLABLE CODE |
| M1A.461 | Other secondary chronic gout, right knee | NON-BILLABLE CODE |
| M1A.4610 | Other secondary chronic gout, right knee, without tophus (tophi) | BILLABLE CODE |
| M1A.4611 | Other secondary chronic gout, right knee, with tophus (tophi) | BILLABLE CODE |
| M1A.462 | Other secondary chronic gout, left knee | NON-BILLABLE CODE |
| M1A.4620 | Other secondary chronic gout, left knee, without tophus (tophi) | BILLABLE CODE |
| M1A.4621 | Other secondary chronic gout, left knee, with tophus (tophi) | BILLABLE CODE |
| M1A.469 | Other secondary chronic gout, unspecified knee | NON-BILLABLE CODE |
| M1A.4690 | Other secondary chronic gout, unspecified knee, without tophus (tophi) | BILLABLE CODE |
| M1A.4691 | Other secondary chronic gout, unspecified knee, with tophus (tophi) | BILLABLE CODE |
| M1A.47 | Other secondary chronic gout, ankle and foot | NON-BILLABLE CODE |
| 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 |
| M1A.48 | Other secondary chronic gout, vertebrae | NON-BILLABLE CODE |
| M1A.48X0 | Other secondary chronic gout, vertebrae, without tophus (tophi) | BILLABLE CODE |
| M1A.48X1 | Other secondary chronic gout, vertebrae, with tophus (tophi) | BILLABLE CODE |
| M1A.49 | Other secondary chronic gout, multiple sites | NON-BILLABLE CODE |
| M1A.49X0 | Other secondary chronic gout, multiple sites, without tophus (tophi) | BILLABLE CODE |
| M1A.49X1 | Other secondary chronic gout, multiple sites, with tophus (tophi) | BILLABLE CODE |
