ICD-10-CM > R00-R99 > R20-R23 > R22 > R22.3 R22.3 Localized swelling, mass and lump, upper limb Non-Billable/Non-Specific Codes R22.30Localized 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, bilateral