R21 ICD 10 Code is a billable and specific code that can be used to indicate a diagnosis of Rash and other nonspecific skin eruption for reimbursement purposes. The 2023 edition of the American ICD-10-CM code became effective on October 1, 2022.

Includes for R21 ICD 10 code
  • rash NOS

Type 1 excludes for R21 ICD 10 code
  • specified type of rash- code to condition
  • vesicular eruption (R23.8)

Terms applicables to R21 ICD 10 code
Possible back-references that may be applicable or related to R21 ICD10 Code:

Present On Admission (POA Exempt)

R21 ICD 10 code is considered exempt from POA reporting

Clinical information about R21 ICD 10 code

A rash is an area of irritated or swollen skin. Many rashes are itchy, red, painful, and irritated. Some rashes can also lead to blisters or patches of raw skin. Rashes are a symptom of many different medical problems. Other causes include irritating substances and allergies. Certain genes can make people more likely to get rashes.

Contact dermatitis is a common type of rash. It causes redness, itching, and sometimes small bumps. You get the rash where you have touched an irritant, such as a chemical, or something you are allergic to, like poison ivy.

Some rashes develop right away. Others form over several days. Although most rashes clear up fairly quickly, others are long-lasting and need long-term treatment.

Because rashes can be caused by many different things, it's important to figure out what kind you have before you treat it. If it is a bad rash, if it does not go away, or if you have other symptoms, you should see your health care provider. Treatments may include moisturizers, lotions, baths, cortisone creams that relieve swelling, and antihistamines, which relieve itching.

The information in this box was provided by MedlinePlus.gov