2017/18 ICD-10-CM Diagnosis Code L50

Urticaria

Type 1 Excludes
Type 1 Excludes Help
A type 1 excludes note is a pure excludes. It means "not coded here". A type 1 excludes note indicates that the code excluded should never be used at the same time as L50. A type 1 excludes note is for used for when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
  • allergic contact dermatitis (
    ICD-10-CM Diagnosis Code L23
    • L23 Allergic contact dermatitis
      • L23.0 Allergic contact dermatitis due to metals
      • L23.1 Allergic contact dermatitis due to adhesives
      • L23.2 Allergic contact dermatitis due to cosmetics
      • L23.3 Allergic contact dermatitis due to drugs in c...
      • L23.4 Allergic contact dermatitis due to dyes
      • L23.5 Allergic contact dermatitis due to other chem...
      • L23.6 Allergic contact dermatitis due to food in co...
      • L23.7 Allergic contact dermatitis due to plants, ex...
      • L23.8 Allergic contact dermatitis due to other agen...
        • L23.81 Allergic contact dermatitis due to animal (ca...
        • L23.89 Allergic contact dermatitis due to other agen...
      • L23.9 Allergic contact dermatitis, unspecified caus...
    L23.-
    )
  • angioneurotic edema (
    ICD-10-CM Diagnosis Code T78.3

    Angioneurotic edema

      2016 2017 2018 Non-Billable/Non-Specific Code
    Applicable To
    • Allergic angioedema
    • Giant urticaria
    • Quincke's edema
    Type 1 Excludes
    T78.3
    )
  • giant urticaria (
    ICD-10-CM Diagnosis Code T78.3

    Angioneurotic edema

      2016 2017 2018 Non-Billable/Non-Specific Code
    Applicable To
    • Allergic angioedema
    • Giant urticaria
    • Quincke's edema
    Type 1 Excludes
    T78.3
    )
  • hereditary angio-edema (
    ICD-10-CM Diagnosis Code D84.1

    Defects in the complement system

      2016 2017 2018 Billable/Specific Code
    Applicable To
    • C1 esterase inhibitor [C1-INH] deficiency
    D84.1
    )
  • Quincke's edema (
    ICD-10-CM Diagnosis Code T78.3

    Angioneurotic edema

      2016 2017 2018 Non-Billable/Non-Specific Code
    Applicable To
    • Allergic angioedema
    • Giant urticaria
    • Quincke's edema
    Type 1 Excludes
    T78.3
    )
  • serum urticaria (
    ICD-10-CM Diagnosis Code T80.6

    Other serum reactions

      2016 2017 2018 Non-Billable/Non-Specific Code
    Applicable To
    • Intoxication by serum
    • Protein sickness
    • Serum rash
    • Serum sickness
    • Serum urticaria
    Type 2 Excludes
    T80.6-
    )
  • solar urticaria (
    ICD-10-CM Diagnosis Code L56.3

    Solar urticaria

      2016 2017 2018 Billable/Specific Code
    L56.3
    )
  • urticaria neonatorum (
    ICD-10-CM Diagnosis Code P83.8

    Other specified conditions of integument specific to newborn

      2016 2017 2018 - Deleted Code 2018 - New Code Non-Billable/Non-Specific Code
    P83.8
    )
  • urticaria papulosa (
    ICD-10-CM Diagnosis Code L28.2

    Other prurigo

      2016 2017 2018 Billable/Specific Code
    Applicable To
    • Prurigo NOS
    • Prurigo Hebra
    • Prurigo mitis
    • Urticaria papulosa
    L28.2
    )
  • urticaria pigmentosa (
    ICD-10-CM Diagnosis Code Q82.2

    Congenital cutaneous mastocytosis

      2016 2017 2018 - Revised Code Billable/Specific Code POA Exempt
    Applicable To
    • Congenital diffuse cutaneous mastocytosis
    • Congenital maculopapular cutaneous mastocytosis
    • Congenital urticaria pigmentosa
    Type 1 Excludes
    • cutaneous mastocytosis NOS (D47.01)
    • diffuse cutaneous mastocytosis (with onset after newborn period) (D47.01)
    • malignant mastocytosis (C96.2-)
    • systemic mastocytosis (D47.02)
    • urticaria pigmentosa (non-congenital) (with onset after newborn period) (D47.01)
    Q82.2
    )
The following code(s) above L50 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to L50:
  • L00-L99
    2018 ICD-10-CM Range L00-L99

    Diseases of the skin and subcutaneous tissue

    Type 2 Excludes
    • certain conditions originating in the perinatal period (P04-P96)
    • certain infectious and parasitic diseases (A00-B99)
    • complications of pregnancy, childbirth and the puerperium (O00-O9A)
    • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
    • endocrine, nutritional and metabolic diseases (E00-E88)
    • lipomelanotic reticulosis (I89.8)
    • neoplasms (C00-D49)
    • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
    • systemic connective tissue disorders (M30-M36)
    • viral warts (B07.-)
    Diseases of the skin and subcutaneous tissue
  • L49-L54
    2018 ICD-10-CM Range L49-L54

    Urticaria and erythema

    Type 1 Excludes
    Urticaria and erythema
Clinical Information Code History
Code annotations containing back-references to L50:
ICD-10-CM Codes Adjacent To L50
L49.0 Exfoliation due to erythematous condition involving less than 10 percent of body surface
L49.1 Exfoliation due to erythematous condition involving 10-19 percent of body surface
L49.2 Exfoliation due to erythematous condition involving 20-29 percent of body surface
L49.3 Exfoliation due to erythematous condition involving 30-39 percent of body surface
L49.4 Exfoliation due to erythematous condition involving 40-49 percent of body surface
L49.5 Exfoliation due to erythematous condition involving 50-59 percent of body surface
L49.6 Exfoliation due to erythematous condition involving 60-69 percent of body surface
L49.7 Exfoliation due to erythematous condition involving 70-79 percent of body surface
L49.8 Exfoliation due to erythematous condition involving 80-89 percent of body surface
L49.9 Exfoliation due to erythematous condition involving 90 or more percent of body surface
L50 Urticaria
L50.0 Allergic urticaria
L50.1 Idiopathic urticaria
L50.2 Urticaria due to cold and heat
L50.3 Dermatographic urticaria
L50.4 Vibratory urticaria
L50.5 Cholinergic urticaria
L50.6 Contact urticaria
L50.8 Other urticaria
L50.9 Urticaria, unspecified
L51 Erythema multiforme

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