| ICD-10 Code | Description |
| M21.20 | Flexion deformity, unspecified site |
| M21.211 | Flexion deformity, right shoulder |
| M21.212 | Flexion deformity, left shoulder |
| M21.219 | Flexion deformity, unspecified shoulder |
| M21.221 | Flexion deformity, right elbow |
| M21.222 | Flexion deformity, left elbow |
| M21.229 | Flexion deformity, unspecified elbow |
| M21.231 | Flexion deformity, right wrist |
| M21.232 | Flexion deformity, left wrist |
| M21.239 | Flexion deformity, unspecified wrist |
| M21.241 | Flexion deformity, right finger joints |
| M21.242 | Flexion deformity, left finger joints |
| M21.249 | Flexion deformity, unspecified finger joints |
| M21.251 | Flexion deformity, right hip |
| M21.252 | Flexion deformity, left hip |
| M21.259 | Flexion deformity, unspecified hip |
| M21.261 | Flexion deformity, right knee |
| M21.262 | Flexion deformity, left knee |
| M21.269 | Flexion deformity, unspecified knee |
| M21.271 | Flexion deformity, right ankle and toes |
| M21.272 | Flexion deformity, left ankle and toes |
| M21.279 | Flexion deformity, unspecified ankle and toes |
