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ICD-10-CM 2027 diagnosis code

R22Localized swelling, mass and lump of skin and subcutaneous tissue

Not billable — use a more specific code

R22 is a header code, so it can't be reported by itself. Choose one of the 6 more specific codes beneath it.Short description: Localized swelling, mass and lump of skin, subcu

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About R22

R22 is the ICD-10-CM diagnosis code for localized swelling, mass and lump of skin and subcutaneous tissue. It belongs to 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 a header code, so it can't be reported by itself; one of its 6 subcodes must be used instead.

To report this condition, pick the subcode that matches the documentation: R22.0 (head), R22.1 (neck), R22.2 (trunk), R22.3 (limb), R22.4 (limb) and R22.9 (unspecified).

Don't report R22 together with the conditions in its Excludes1 note: abnormal findings on diagnostic imaging (R90-R93), edema (R60.-), enlarged lymph nodes (R59.-), localized adiposity (E65) and 1 more.

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

Specific codes under R22

Coding notes

IncludesFurther defines the content of the category
  • subcutaneous nodules (localized)(superficial)
Excludes1Not coded here — never report together with this code
  • abnormal findings on diagnostic imaging (R90-R93)
  • edema (R60.-)
  • enlarged lymph nodes (R59.-)
  • localized adiposity (E65)
  • swelling of joint (M25.4-)

Notes that apply from higher levels

Instructions written at a parent level also apply to R22.

Broader instructions also apply from 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.

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • No changes since FY2016.

Common questions about R22

Is R22 billable?

No. R22 is a header code. Report one of its more specific subcodes instead.