1. ICD-10-CM Codes
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2. L00-L99 Diseases of the skin and subcutaneous tissue
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3. L49-L54 Urticaria and erythema
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4. L50- Urticaria
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5. 2021 ICD-10-CM Diagnosis Code L50

2021 ICD-10-CM Diagnosis Code L50

Urticaria

2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code

• L50 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
• The 2021 edition of ICD-10-CM L50 became effective on October 1, 2020.
• This is the American ICD-10-CM version of L50 - other international versions of ICD-10 L50 may differ.

• A disorder characterized by an itchy skin eruption characterized by wheals with pale interiors and well-defined red margins.
• A raised, erythematous papule or cutaneous plaque, usually representing short-lived dermal edema
• A vascular reaction of the skin characterized by erythema and wheal formation due to localized increase of vascular permeability. The causative mechanism may be allergy, infection, or stress.
• An itchy skin eruption characterized by weals with pale interiors and well-defined red margins; usually the result of an allergic response to insect bites or food or drugs.
• An itchy skin eruption characterized by wheals with pale interiors and well-defined red margins; usually the result of an allergic response to insect bites or food or drugs.
• Hives are red and sometimes itchy bumps on your skin. An allergic reaction to a drug or food usually causes them. Allergic reactions cause your body to release chemicals that can make your skin swell up in hives. People who have other allergies are more likely to get hives than other people. Other causes include infections and stress.hives are very common. They usually go away on their own, but if you have a serious case, you might need medicine or a shot. In rare cases, allergic reactions can cause a dangerous swelling in your airways, making it hard to breathe - which is a medical emergency.
• Itchy, raised red areas on the skin. Urticaria are caused by a reaction to certain foods, drugs, infections, or emotional stress.
• Urticaria.
• Usually transient vascular reaction involving the upper dermis, representing local edema caused by dilation and increased permeability of the capilliaries and the development of wheals.

• 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
• 2017 (effective 10/1/2016): No change
• 2018 (effective 10/1/2017): No change
• 2019 (effective 10/1/2018): No change
• 2020 (effective 10/1/2019): No change
• 2021 (effective 10/1/2020): No change

• Code First: F54
  ICD-10-CM Diagnosis Code F54

  Psychological and behavioral factors associated with disorders or diseases classified elsewhere

  2016 2017 2018 2019 2020 2021 Billable/Specific Code Manifestation Code

  Applicable To

  • Psychological factors affecting physical conditions

  Code First

  • the associated physical disorder, such as:
  • asthma (J45.-)
  • dermatitis (L23-L25)
  • gastric ulcer (K25.-)
  • mucous colitis (K58.-)
  • ulcerative colitis (K51.-)
  • urticaria (L50.-)

  Type 2 Excludes

  • tension-type headache (G44.2)
• Type 1 Excludes: L95
  , T78.3
  ICD-10-CM Diagnosis Code L95

  Vasculitis limited to skin, not elsewhere classified

  2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code

  Type 1 Excludes

  • angioma serpiginosum (L81.7)
  • Henoch(-Schönlein) purpura (D69.0)
  • hypersensitivity angiitis (M31.0)
  • lupus panniculitis (L93.2)
  • panniculitis NOS (M79.3)
  • panniculitis of neck and back (M54.0-)
  • polyarteritis nodosa (M30.0)
  • relapsing panniculitis (M35.6)
  • rheumatoid vasculitis (M05.2)
  • serum sickness (T80.6-)
  • urticaria (L50.-)
  • Wegener's granulomatosis (M31.3-)
  ICD-10-CM Diagnosis Code T78.3

  Angioneurotic edema

  2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code

  Applicable To

  • Allergic angioedema
  • Giant urticaria
  • Quincke's edema

  Type 1 Excludes

  • serum urticaria (T80.6-)
  • urticaria (L50.-)
• Type 2 Excludes: L27
  ICD-10-CM Diagnosis Code L27

  Dermatitis due to substances taken internally

  2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code

  Type 1 Excludes

  • allergy NOS (T78.40)

  Type 2 Excludes

  • adverse food reaction, except dermatitis (T78.0-T78.1)
  • contact dermatitis (L23-L25)
  • drug photoallergic response (L56.1)
  • drug phototoxic response (L56.0)
  • urticaria (L50.-)

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.