2026 ICD-10-CM Diagnosis Code R22.2Localized swelling, mass and lump, trunk

ICD-10-CM Codes›R00–R99›R20-R23›R22

ICD-10-CM R22.2
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

R22.2 is a billable ICD-10-CM diagnosis code for localized swelling, mass and lump, trunk. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 606 through 607. As a symptom code, it should not be used as a principal diagnosis once a related definitive diagnosis has been established. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Skin/Subcutaneous signs and symptoms.

Code Identity

ICD-10-CM Code
R22.2
Billable Status
Yes — Valid for Submission
Code Describes
Localized swelling, mass and lump, trunk
Short Description
Localized swelling, mass and lump, trunk
Same as the full description in the CMS dataset.
Parent Code
R22
Localized swelling, mass and lump of skin and subcutaneous tissue

Code Classification

ChapterR00–R99Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified
SectionR20-R23Symptoms and signs involving the skin and subcutaneous tissue
CategoryR22Localized swelling, mass and lump of skin and subcutaneous tissue
This CodeR22.2Localized swelling, mass and lump, trunk

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Anterior mediastinum mass
  • Bony swelling of thoracic spine
  • Buffalo hump
  • Chest swelling
  • Localized swelling of abdominal wall
  • Localized swelling of back
  • Localized swelling of chest wall
  • Lumbar mass
  • Lumbar spine - soft tissue swelling
  • Lumbar spine - swollen
  • Male perineal mass
  • Mass of axilla
  • Mass of back
  • Mass of buttock
  • Mass of chest wall
  • Mass of skin of abdomen
  • Mass of skin of back
  • Mass of skin of chest
  • Mass of subcutaneous tissue of abdominal wall
  • Mass of subcutaneous tissue of back
  • Mass of thoracic structure
  • Mass of trunk
  • Mediastinal mass
  • Nodule of buttock
  • Nodule of skin of abdomen
  • Nodule of skin of back
  • Nodule of skin of chest
  • Nodule of subcutaneous tissue of abdominal wall
  • Nodule of subcutaneous tissue of back
  • Nodule of subcutaneous tissue of chest wall
  • Omphalith
  • Perianal lump
  • Perineal lump
  • Swelling of clitoris
  • Swelling of female genital structure
  • Swelling of labia
  • Swelling of trunk
  • Swelling of vulva
  • Thoracic spine - soft tissue swelling
  • Thoracic spine - swollen

Tabular List NotesGuidance

Coding notes and annotation back-references applicable to this code.

Type 1 Excludes

  • intra-abdominal or pelvic mass and lump R19.0
  • intra-abdominal or pelvic swelling R19.0

Type 2 Excludes

  • breast mass and lump N63

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

External Cause of Injuries IndexGuidance

References for this code in the External Cause of Injuries Index.

    • Mass
      • chest
    • Mass
      • localized (skin)
        • chest
    • Mass
      • localized (skin)
        • trunk
    • Swelling(of)
      • chest, localized
    • Swelling(of)
      • localized (skin)
        • chest
    • Swelling(of)
      • localized (skin)
        • trunk

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR SYM014
Skin/Subcutaneous signs and symptoms
Default principal diagnosis: inpatient Yes · outpatient Yes

Clinical InformationClinical

  • Bulky Mediastinal Mass|BULK_MED_MASS|BULK_MED_MASS

    when the maximum width of a mass is equal or greater than one-third of the internal transverse diameter of the thorax at the level of t5/6 on a pa cxr. bulk at an alternate site is defined as any mass measuring 10 cm or more by any imaging study.

  • Mediastinal Mass

    a mass present in the mediastinal space.

  • Mediastinal Mass Surgery|Surgery for Mediastinal Masses

    surgery on a mass located on the mediastinum.

Convert R22.2 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
782.2 Local suprficial swellng
Approximate The match is approximate rather than exact.
ICD-9-CM
786.6 Chest swelling/mass/lump
Approximate The match is approximate rather than exact.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About R22.2Overview

Is R22.2 a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report localized swelling, mass and lump, trunk on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does R22.2 group to?

When localized swelling, mass and lump, trunk is the principal diagnosis on an inpatient stay, it groups to MS-DRG 606, 607, with relative weights from 0.9064 to 1.5132 depending on complications. Higher weights mean higher Medicare reimbursement.

Can R22.2 be a principal diagnosis?

Use it with care. This is a symptom code, so once a definitive diagnosis explaining the localized swelling, mass and lump, trunk is established, that condition takes the principal position instead.

What is the ICD-9 equivalent of R22.2?

Under the General Equivalence Mappings, localized swelling, mass and lump, trunk converts to ICD-9-CM 782.2 (local suprficial swellng) and 786.6 (chest swelling/mass/lump). The mapping is approximate, so confirm the match fits the documentation.

Footnotes

[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.