J45
Non-billableAsthma
Asthma
This is a header/category code. For billing purposes, use a more specific child code from the list below.
Coding Notes
Includes
Conditions included under this code
- allergic (predominantly) asthma
- allergic bronchitis NOS
- allergic rhinitis with asthma
- atopic asthma
- extrinsic allergic asthma
- hay fever with asthma
- idiosyncratic asthma
- intrinsic nonallergic asthma
- nonallergic asthma
Excludes 1
Codes that cannot be used together with this code (mutual exclusion)
Excludes 2
Conditions not included here, but the patient may have both
- •certain conditions originating in the perinatal periodP04-P96
- •certain infectious and parasitic diseasesA00-B99
- •complications of pregnancy, childbirth and the puerperiumO9A)O00
- •congenital malformations, deformations and chromosomal abnormalitiesQ00-Q99
- •endocrine, nutritional and metabolic diseasesE00-E88
- •injury, poisoning and certain other consequences of external causesS00-T88
- •neoplasmsC00-D49
- •smoke inhalationT59.81
- •symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classifiedR00-R94
- •cystic fibrosisE84
- •asthma with chronic obstructive pulmonary diseaseJ44.89
- •chronic asthmatic (obstructive) bronchitisJ44.89
- •chronic obstructive asthmaJ44.89
- •other specified chronic obstructive pulmonary diseaseJ44.89
Use Additional Code
Additional codes that should follow this code
- code, where applicable, to identify:
- •exposure to environmental tobacco smokeZ77.22
- •exposure to tobacco smoke in the perinatal periodP96.81
- •history of tobacco dependenceZ87.891
- •occupational exposure to environmental tobacco smokeZ57.31
- •tobacco dependenceF17
- •tobacco useZ72.0
- code to identify:
- •eosinophilic asthmaJ82.83
Child Codes (5)
Related Conditions
ICD-11 Equivalents(1)
ICD-11 Equivalents
View full mappingCorresponding ICD-11 codes from the WHO crosswalk mapping
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Extracted Entities
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Also Known As / Clinical Terms(56)
UMLS
- Airway hyperreactivityC0004096
- AsthmaC0004096
- Asthma (disorder)C0004096
- Asthma NOSC0004096
- Asthma bronchialC0004096
- Asthma, BronchialC0004096
- Asthma, unspecifiedC0004096
- AsthmasC0004096
- AsthmaticC0004096
- Bronchial AsthmaC0004096
- Bronchial asthmaC0004096
- Bronchitic asthmaC0004096
- Unspecified asthmaC0004096
- asthmaC0004096
- asthma disordersC0004096
- asthmaticC0004096
- asthmaticsC0004096
- br asthmaC0004096
- bronchial asthmaC0004096
- bronchitic asthmaC0004096
- Allergic asthmaC0155877
- Allergic asthma (disorder)C0155877
- Asthma extrinsicC0155877
- Atopic asthmaC0155877
- Extrinsic asthmaC0155877
- allergic asthmaC0155877
- asthma allergicC0155877
- asthma atopicC0155877
- asthma extrinsicC0155877
- atopic asthmaC0155877
- extrinsic allergic asthmaC0155877
- extrinsic asthmaC0155877
- Allergic bronchitisC1260881
- Allergic bronchitis (disorder)C1260881
- allergic bronchitisC1260881
- allergic bronchitis NOSC1260881
- bronchitis allergicC1260881
- Asthma due to internal immunological processC0155880
- Intrinsic asthmaC0155880
- Non-allergic asthmaC0155880
- Non-allergic asthma (disorder)C0155880
- asthma intrinsicC0155880
- asthma nonallergicC0155880
- intrinsic asthmaC0155880
- intrinsic nonallergic asthmaC0155880
- nonallergic asthmaC0155880
- Hay fever with asthmaC0264411
- Hay fever with asthma (disorder)C0264411
- Pollen asthmaC0264411
- asthma pollenC0264411
- hay fever asthmaC0264411
- hay fever with asthmaC0264411
- pollen asthmaC0264411
- allergic (predominantly) asthmaC0494660
- allergic rhinitis with asthmaC1387164
- idiosyncratic asthmaC1388869
Frequently Asked Questions
What is the ICD-10 code for asthma?
The ICD-10-CM code for asthma is J45. The full clinical description is "Asthma". J45 is a non-billable header code. Use a more specific child code for billing purposes.
What does ICD-10 code J45 mean?
ICD-10-CM code J45 represents “Asthma”. It is classified under Chapter 10: Diseases of the Respiratory System and is a non-billable header code. Use a more specific child code for billing purposes.
Is J45 a billable code?
No, J45 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 5 child codes under J45.
What chapter is J45 in?
J45 is in Chapter 10: Diseases of the Respiratory System (codes J00-J99).
What codes cannot be used with J45?
J45 has Excludes1 notes indicating codes that cannot be used together with it, including: bronchitis due to chemicals, gases, fumes and vapors (J68.0); detergent asthma (J69.8); miner's asthma (J60); and 2 more.
What are the subcategories under J45?
J45 has 5 child codes, including: J45.2 (Mild intermittent asthma), J45.3 (Mild persistent asthma), J45.4 (Moderate persistent asthma), J45.5 (Severe persistent asthma), and 1 more.
Are additional codes required with J45?
Yes, when using J45, also report: code, where applicable, to identify:; exposure to environmental tobacco smoke (Z77.22); exposure to tobacco smoke in the perinatal period (P96.81); history of tobacco dependence (Z87.891); occupational exposure to environmental tobacco smoke (Z57.31); tobacco dependence (F17.-); tobacco use (Z72.0); ; eosinophilic asthma (J82.83).
What are the UMLS CUIs for J45?
J45 is linked to 8 UMLS Concept Unique Identifiers: C0004096, C0155877, C1260881, C0155880, C0264411, and 3 more. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does J45 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like asthma affect a person's functioning — body functions, activities, participation, and environmental factors. AutoICD provides ICF Core Sets for 12+ conditions and can map clinical text to ICF categories automatically. Browse the ICF directory to explore functioning codes.
What is the ICD-11 equivalent of J45?
J45 maps to the ICD-11 code: CA23.32 (Unspecified asthma, uncomplicated).
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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.