ICD-10 Diagnosis Code R21

Rash and other nonspecific skin eruption

Diagnosis Code R21

ICD-10: R21
Short Description: Rash and other nonspecific skin eruption
Long Description: Rash and other nonspecific skin eruption
This is the 2018 version of the ICD-10-CM diagnosis code R21

Valid for Submission
The code R21 is valid for submission for HIPAA-covered transactions.

Code Classification
  • Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00–R99)
    • Symptoms and signs involving the skin and subcutaneous tissue (R20-R23)
      • Rash and other nonspecific skin eruption (R21)

Information for Medical Professionals

According to ICD-10-CM guidelines this code should not to be used as a principal diagnosis code when a related definitive diagnosis has been established.
Diagnostic Related Groups
The diagnosis code R21 is grouped in the following Diagnostic Related Group(s) (MS-DRG V35.0)

  • 606 - MINOR SKIN DISORDERS WITH MCC
  • 607 - MINOR SKIN DISORDERS WITHOUT MCC

Convert to ICD-9 Additional informationCallout TooltipGeneral Equivalence Map
The ICD-10 and ICD-9 GEMs are used to facilitate linking between the diagnosis codes in ICD-9-CM and the new ICD-10-CM code set. The GEMs are the raw material from which providers, health information vendors and payers can derive specific applied mappings to meet their needs.
  • 782.1 - Nonspecif skin erupt NEC

Synonyms
  • Application site disorder
  • Application site rash
  • Blanching rash
  • Blistering eruption
  • Blisters beneath skin
  • Broken skin
  • Butterfly rash
  • Centrifugal rash
  • Centripetal rash
  • Complaining of a rash
  • Disorder of skin co-occurrent with human immunodeficiency virus infection
  • Eruption of female perineum
  • Eruption of skin
  • Eruption of skin co-occurrent with human immunodeficiency virus infection
  • Eruption of vulva
  • Exanthem caused by ornithosis
  • Exanthematous infectious disease
  • Irritation symptom
  • Macular eruption
  • Maculopapular eruption
  • Micropapular weal
  • Morbilliform eruption
  • Multimorphic rash
  • Non-blanching rash
  • On examination - discoid rash
  • On examination - dribble rash
  • On examination - itchy rash
  • On examination - macules
  • On examination - macules present
  • On examination - rash present
  • On examination - scalp rash
  • On examination - weals present
  • Papular eruption
  • Papular eruption of blacks
  • Phototherapy skin rash
  • Premycotic eruption
  • Rash of genitalia
  • Rash of groin
  • Rash of systemic lupus erythematosus
  • Rubelliform eruption
  • Skin disorder associated with acquired immunodeficiency syndrome
  • Skin rash associated with acquired immunodeficiency syndrome
  • Skin symptom
  • Southern tick-associated rash illness
  • Symptom of skin and integumentary tissue
  • Synchronous rash
  • Weal
  • Weal

Index of Diseases and Injuries
References found for the code R21 in the Index of Diseases and Injuries:


Information for Patients


Rashes

Also called: Dermatitis, Skin rash

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.

  • "Hot Tub Rash" and "Swimmer's Ear" (Pseudomonas) (Centers for Disease Control and Prevention)
  • Contact dermatitis (Medical Encyclopedia)
  • Diaper rash (Medical Encyclopedia)
  • Hot tub folliculitis (Medical Encyclopedia)
  • Pityriasis rosea (Medical Encyclopedia)
  • Rash - child under 2 years (Medical Encyclopedia)
  • Rashes (Medical Encyclopedia)


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