Localized swelling, mass and lump of skin and subcutaneous tissue (R22) ICD-10-CM
The R22 code range covers localized swelling, mass and lump of skin and subcutaneous tissue with 15 ICD-10-CM diagnosis codes. 12 of them are billable and valid for claim submission in fiscal year 2026, and the category headers group them but cannot themselves be billed.
Includes
This note appears immediately under a three character code title to further define, or give examples of, the content of the category.
- subcutaneous nodules (localized)(superficial)
Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
Codes in the R22 Range 15 codes · 12 billable
- R22 Localized swelling, mass and lump of skin and subcutaneous tissueNon-billable
- R22.0 Localized swelling, mass and lump, head
- R22.1 Localized swelling, mass and lump, neck
- R22.2 Localized swelling, mass and lump, trunk
- R22.3 Localized swelling, mass and lump, upper limbNon-billable
- R22.30 Localized swelling, mass and lump, unspecified upper limb
- R22.31 Localized swelling, mass and lump, right upper limb
- R22.32 Localized swelling, mass and lump, left upper limb
- R22.33 Localized swelling, mass and lump, upper limb, bilateral
- R22.4 Localized swelling, mass and lump, lower limbNon-billable
- R22.40 Localized swelling, mass and lump, unspecified lower limb
- R22.41 Localized swelling, mass and lump, right lower limb
- R22.42 Localized swelling, mass and lump, left lower limb
- R22.43 Localized swelling, mass and lump, lower limb, bilateral
- R22.9 Localized swelling, mass and lump, unspecified
About the R22 Code Range
R22 codes cover localized swelling, masses, and lumps found in the skin and subcutaneous tissue. These codes specify the affected body region such as the head (R22.0), neck (R22.1), trunk (R22.2), upper limbs (R22.3 subcodes), and lower limbs (R22.4 subcodes), or can remain unspecified (R22.9).
The ICD-10 code for localized swelling or lump helps identify exactly where a swelling or mass is located, whether it's a nodule on the skin or a subcutaneous lump. For example, R22.0 includes swellings in the head area, also known by terms such as nasal dermoid, facial swelling, or mass of lip. Similarly, R22.1 covers nodules and masses of the neck region, encompassing parotid gland masses or tonsillar swelling. Upper limb codes like R22.31 and R22.32 designate right or left localized swellings, with synonyms including cysts, nodules, or lumps on the fingers, forearm, or shoulder. Lower limb codes such as R22.41 and R22.42 refer to nodules or masses on feet, calves, or toes. The unspecified code R22.9 is used when swelling or lump location is not detailed. These codes guide proper documentation of skin and soft tissue swelling in medical records.
Questions About This Page
How many billable codes are in the R22 range?
Of the 15 codes in this range, 12 are billable and valid for claim submission from October 1, 2025 through September 30, 2026. Category header codes group them but cannot be reported on claims.
What does the R22 range classify?
The range classifies localized swelling, mass and lump of skin and subcutaneous tissue. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2026 ICD-10-CM Tabular List and order file, effective October 1, 2025 through September 30, 2026.
