ICD-10-CM > R00-R99 > R20-R23 > R22 R22 Localized swelling, mass and lump of skin and subcutaneous tissue Non-Billable/Non-Specific Includes subcutaneous nodules (localized)(superficial) Type 1 Excludes abnormal findings on diagnostic imaging (R90-R93)edema (R60.-)enlarged lymph nodes (R59.-)localized adiposity (E65)swelling of joint (M25.4-) Codes R22.0Localized swelling, mass and lump, headR22.1Localized swelling, mass and lump, neckR22.2Localized swelling, mass and lump, trunkR22.3Localized swelling, mass and lump, upper limbR22.30Localized swelling, mass and lump, unspecified upper limbR22.31Localized swelling, mass and lump, right upper limbR22.32Localized swelling, mass and lump, left upper limbR22.33Localized swelling, mass and lump, upper limb, bilateralR22.4Localized swelling, mass and lump, lower limbR22.40Localized swelling, mass and lump, unspecified lower limbR22.41Localized swelling, mass and lump, right lower limbR22.42Localized swelling, mass and lump, left lower limbR22.43Localized swelling, mass and lump, lower limb, bilateralR22.9Localized swelling, mass and lump, unspecified