2027 ICD-10-CM Diagnosis Code R22.0Localized swelling, mass and lump, head

ICD-10-CM Codes›R00–R99›R20-R23›R22

ICD-10-CM R22.0
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

R22.0 is a billable ICD-10-CM diagnosis code for localized swelling, mass and lump, head. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) 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
R22.0
Billable Status
Yes — Valid for Submission
Code Describes
Localized swelling, mass and lump, head
Short Description
Localized swelling, mass and lump, head
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 CodeR22.0Localized swelling, mass and lump, head

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Cyst of face
  • Facial swelling
  • Finding of appearance of nasal mucosa
  • Head and neck swelling
  • Hypothalamic mass
  • Intracranial mass
  • Localized orbital swelling
  • Localized swelling of head
  • Lump on face
  • Mass in pinna
  • Mass lesion of brain
  • Mass of ear structure
  • Mass of hard palate
  • Mass of head
  • Mass of head and/or neck
  • Mass of lip
  • Mass of nasal sinus
  • Mass of nose
  • Mass of oral cavity
  • Mass of palate
  • Mass of parietal bone of skull
  • Mass of petrous part of temporal bone
  • Mass of postauricular region
  • Mass of preauricular region
  • Mass of scalp
  • Mass of skin of head
  • Mass of tongue
  • Mucous membrane swelling
  • Nasal dermoid
  • Nasal mucosa boggy
  • Neck swelling
  • Nodule of nasal cavity
  • Nodule of skin of head
  • Nodule of skin of nose
  • Nodule of soft palate
  • Nodule of subcutaneous tissue of head
  • Nodule of suprahyoid region
  • Pituitary mass
  • Subcutaneous mass of head
  • Swelling around eyes
  • Swelling of eyelid
  • Swelling of head
  • Swelling of lower jaw region
  • Swelling of oral cavity structure
  • Swelling of structure of bilateral eyes
  • Swelling of structure of eye
  • Swelling of structure of left eye
  • Swelling of structure of right eye
  • Swelling over mastoid
  • Swollen nasal mucosa
  • Swollen nose
  • Tongue swelling

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to R22.0: its own notes plus those printed at R22, block R20-R23, and Chapter 18. A note printed at a category, block or chapter applies to every code under it.

Includes

Further defines, or gives examples of, the content of the category.

From R22 Localized swelling, mass and lump of skin and subcutaneous tissue applies to 12 codes
  • subcutaneous nodules (localized)(superficial)

Excludes1

Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.

From R22 Localized swelling, mass and lump of skin and subcutaneous tissue applies to 12 codes
  • abnormal findings on diagnostic imaging (R90-R93)
  • edema (R60.-)
  • enlarged lymph nodes (R59.-)
  • localized adiposity (E65)
  • swelling of joint (M25.4-)

Excludes2

Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.

From Block R20-R23 Symptoms and signs involving the skin and subcutaneous tissue applies to 26 codes
From Chapter 18 (R00-R99) Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified applies to 774 codes
  • abnormal findings on antenatal screening of mother (O28.-)
  • certain conditions originating in the perinatal period (P04-P96)
  • signs and symptoms classified in the body system chapters
  • signs and symptoms of breast (N63, N64.5)

Notes

General instructions on how these codes are used.

From Chapter 18 (R00-R99) Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified applies to 774 codes
  • This chapter includes symptoms, signs, abnormal results of clinical or other investigative procedures, and ill-defined conditions regarding which no diagnosis classifiable elsewhere is recorded.
  • Signs and symptoms that point rather definitely to a given diagnosis have been assigned to a category in other chapters of the classification. In general, categories in this chapter include the less well-defined conditions and symptoms that, without the necessary study of the case to establish a final diagnosis, point perhaps equally to two or more diseases or to two or more systems of the body. Practically all categories in the chapter could be designated 'not otherwise specified', 'unknown etiology' or 'transient'. The Alphabetical Index should be consulted to determine which symptoms and signs are to be allocated here and which to other chapters. The residual subcategories, numbered .8, are generally provided for other relevant symptoms that cannot be allocated elsewhere in the classification.
  • The conditions and signs or symptoms included in categories R00-R94 consist of:
  • (a) cases for which no more specific diagnosis can be made even after all the facts bearing on the case have been investigated;
  • (b) signs or symptoms existing at the time of initial encounter that proved to be transient and whose causes could not be determined;
  • (c) provisional diagnosis in a patient who failed to return for further investigation or care;
  • (d) cases referred elsewhere for investigation or treatment before the diagnosis was made;
  • (e) cases in which a more precise diagnosis was not available for any other reason;
  • (f) certain symptoms, for which supplementary information is provided, that represent important problems in medical care in their own right.

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Referenced in Other NotesGuidance

Instructional notes printed at other codes that name R22.0, its category, or a range that includes it.

Applicable To 1

These notes mention R22.0.

  • G71.038 Other limb girdle muscular dystrophy
    LGMD R22 collagen 6-related names R22, which includes this code

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

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

Convert R22.0 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
784.2 Swelling in head & neck
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 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About R22.0Overview

What is the ICD-10 code for localized swelling, mass and lump, head?

The ICD-10-CM code for localized swelling, mass and lump, head is R22.0 (sometimes written as R220). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

Is R22.0 a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report localized swelling, mass and lump, head on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

What MS-DRG does R22.0 group to?

When localized swelling, mass and lump, head is the principal diagnosis on an inpatient stay, it groups to MS-DRG 607, 606, with relative weights from 0.8772 to 1.5721 depending on complications. Higher weights mean higher Medicare reimbursement.

Can R22.0 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, head is established, that condition takes the principal position instead.

Can R22.0 be reported with a code from R60?

Not as a rule. The Excludes1 note at R22, which applies to R22.0, lists "edema (R60.-)". An Excludes1 note means the excluded code is never reported together with this one; the only exception is when the two conditions are unrelated to each other (Official Guidelines, Section I.A.12.a).