When is ICD-10 code R22 used?

Doctors, hospitals, and insurers may use ICD-10 code R22 when recording localized swelling, mass and lump of skin and subcutaneous tissue in a standardized format. This entry may also act as a broader category that points toward more specific child codes.

Does ICD-10 code R22 confirm a diagnosis?

No. A code helps standardize documentation and claims, but it should not be read as a substitute for a clinician's full assessment.

ICD10

ICD-10 Code R22: Localized swelling, mass and lump of skin and subcutaneous tissue

Name: ICD-10 Code R22: Localized swelling, mass and lump of skin and subcutaneous tissue
Creator: HealthAssure Clinical Team
Published: 2026-05-21T06:30:29.066Z

R22 is an ICD-10 diagnosis entry used to group records related to Localized swelling, mass and lump of skin and subcutaneous tissue. You may see this entry in coding references, medical records, or claims workflows when a broader diagnosis category is being reviewed before a more specific code is chosen. ICD-10 entries help standardize how diagnoses are organized for coding, reporting, analytics, and documentation. This code sits within the broader ICD-10 area for Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99).

Reviewed by HealthAssure Clinical TeamUpdated 21 May 2026

What is this code?

ICD-10 entries help standardize how diagnoses are organized for coding, reporting, analytics, and documentation. This code sits within the broader ICD-10 area for Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99).

When is it used?

May be used when a clinician documents localized swelling, mass and lump of skin and subcutaneous tissue in a patient's medical record.
May appear in hospital records, claims, referrals, and clinical documentation.
This code may act more like a grouping or parent code, so a more specific child code may be used in final documentation when available.

What it does not mean

A code alone does not explain severity, treatment plan, or outcome.
A medical code should not be treated as a substitute for a doctor's diagnosis or advice.
This entry may represent a broader category rather than the most specific billable code.

Code hierarchy

chapter

18Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)

block

R20-R23Symptoms and signs involving the skin and subcutaneous tissue

currentR20-R23

Official coding notes

Includes

subcutaneous nodules (localized)(superficial)

Excludes1 (do not code together)

abnormal findings on diagnostic imaging (R90-R93)
edema (R60.-)
enlarged lymph nodes (R59.-)
localized adiposity (E65)
swelling of joint (M25.4-)

Where you may see this code

You may see this entry in coding references, medical records, or claims workflows when a broader diagnosis category is being reviewed before a more specific code is chosen.

Related specialists

General PhysicianDermatologist

Sibling codes

R20Disturbances of skin sensation R21Rash and other nonspecific skin eruptionbillable R23Other skin changes

Coding guidelines

Compatibility

Legacy code aligns to an official FY 2026 category. Frontend should resolve to the official category page and surface the billable child codes.

Legacy codes

R22

Replacement codes

R22.0 — Localized swelling, mass and lump, headR22.1 — Localized swelling, mass and lump, neckR22.2 — Localized swelling, mass and lump, trunkR22.9 — Localized swelling, mass and lump, unspecified

Common synonyms

Localized swelling, mass and lump of skin and subcutaneous tissue

Frequently asked questions

About this content

This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.