R22.0 – Localized swelling, mass and lump, head

ICD-10-CM 2027 diagnosis code · Symptoms and signs involving the skin and subcutaneous tissue

Billable code

ICD-10-CM code R22.0

Code: R22.0 (claims format: R220)
Description: Localized swelling, mass and lump, head
Billable: Yes – valid for HIPAA-covered transactions
Valid for: Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter: 18. Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)
Block: R20-R23 Symptoms and signs involving the skin and subcutaneous tissue
Parent codes: R22

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

R22 – Localized swelling, mass and lump of skin and subcutaneous tissue

Includes:

subcutaneous nodules (localized)(superficial)

Excludes1 (not coded here):

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

Block R20-R23

Excludes2 (not included here):

symptoms relating to breast (N64.4-N64.5)

Index terms for R22.0

Entries in the ICD-10-CM alphabetic index that lead to this code:

Related codes in R22

Frequently asked questions

What is ICD-10 code R22.0?

R22.0 is the ICD-10-CM code for localized swelling, mass and lump, head, in the block R20-R23 (Symptoms and signs involving the skin and subcutaneous tissue).

Is R22.0 a billable code?

Yes. R22.0 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.

What category does R22.0 belong to?

It belongs to category R22 – Localized swelling, mass and lump of skin and subcutaneous tissue.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.