| R22 | Localized swelling, mass and lump of skin and subcutaneous tissue | NON-BILLABLE CODE |
| R22.0 | Localized swelling, mass and lump, head | BILLABLE CODE |
| R22.1 | Localized swelling, mass and lump, neck | BILLABLE CODE |
| R22.2 | Localized swelling, mass and lump, trunk | BILLABLE CODE |
| R22.3 | Localized swelling, mass and lump, upper limb | NON-BILLABLE CODE |
| R22.30 | Localized swelling, mass and lump, unspecified upper limb | BILLABLE CODE |
| R22.31 | Localized swelling, mass and lump, right upper limb | BILLABLE CODE |
| R22.32 | Localized swelling, mass and lump, left upper limb | BILLABLE CODE |
| R22.33 | Localized swelling, mass and lump, upper limb, bilateral | BILLABLE CODE |
| R22.4 | Localized swelling, mass and lump, lower limb | NON-BILLABLE CODE |
| R22.40 | Localized swelling, mass and lump, unspecified lower limb | BILLABLE CODE |
| R22.41 | Localized swelling, mass and lump, right lower limb | BILLABLE CODE |
| R22.42 | Localized swelling, mass and lump, left lower limb | BILLABLE CODE |
| R22.9 | Localized swelling, mass and lump, unspecified | BILLABLE CODE |
