R22.30Localized swelling, mass and lump, unspecified upper limb

R22.30 is the ICD-10-CM diagnosis code for localized swelling, mass and lump, unspecified upper limb. It belongs to category R22 (localized swelling, mass and lump of skin and subcutaneous tissue), block R20-R23 (symptoms and signs involving the skin and subcutaneous tissue) and chapter 18 (symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.

Within R22.3, choose R22.30 (unspecified upper limb) only when documentation doesn't support a more specific option: right upper limb (R22.31), left upper limb (R22.32) and bilateral (R22.33).

It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.

In MS-DRG v44.0, it is part of the grouping logic for DRG 606 (Minor Skin Disorders with MCC, relative weight 1.5728) and DRG 607 (Minor Skin Disorders without MCC, relative weight 0.8772), in MDC 09 (Diseases and Disorders of the Skin, Subcutaneous Tissue and Breast), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Before ICD-10, this condition was coded in ICD-9-CM as 782.2 (localized superficial swelling, mass, or lump).