J45.90
Non-billableUnspecified asthma
Unspecified asthma
This is a header/category code. For billing purposes, use a more specific child code from the list below.
Coding Notes
Inclusion Terms
Alternative clinical terms for this condition
- Asthmatic bronchitis NOS
- Childhood asthma NOS
- Late onset asthma
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 (3)
Related Codes(1)
Related Conditions
Also Known As / Clinical Terms(44)
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
- Asthma in ChildrenC0264408
- Childhood AsthmaC0264408
- Childhood asthmaC0264408
- Childhood asthma (disorder)C0264408
- Childhood asthma NOSC0264408
- Pediatric asthmaC0264408
- asthma childhoodC0264408
- childhood asthmaC0264408
- Asthma late onsetC0264413
- Late onset asthmaC0264413
- Late onset asthma (disorder)C0264413
- Late-onset asthmaC0264413
- late onset asthmaC0264413
- late-onset asthmaC0264413
- Asthmatic bronchitisC1319018
- Asthmatic bronchitis (disorder)C1319018
- Asthmatic bronchitis NOSC1319018
- Bronchitis asthmaticC1319018
- Wheezy bronchitisC1319018
- asthma bronchitisC1319018
- asthmatic bronchitisC1319018
- bronchitis asthmaC1319018
- bronchitis asthmaticC1319018
- wheezy bronchitisC1319018
Frequently Asked Questions
What is the ICD-10 code for unspecified asthma?
The ICD-10-CM code for unspecified asthma is J45.90. The full clinical description is "Unspecified asthma". J45.90 is a non-billable header code. Use a more specific child code for billing purposes.
What does ICD-10 code J45.90 mean?
ICD-10-CM code J45.90 represents “Unspecified 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 J45.90 a billable code?
No, J45.90 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 3 child codes under J45.90.
What chapter is J45.90 in?
J45.90 is in Chapter 10: Diseases of the Respiratory System (codes J00-J99).
What codes cannot be used with J45.90?
J45.90 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 J45.90?
J45.90 has 3 child codes, including: J45.901 (Unspecified asthma with (acute) exacerbation), J45.902 (Unspecified asthma with status asthmaticus), J45.909 (Unspecified asthma, uncomplicated).
Are additional codes required with J45.90?
Yes, when using J45.90, 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 J45.90?
J45.90 is linked to 4 UMLS Concept Unique Identifiers: C0004096, C0264408, C0264413, C1319018. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does J45.90 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like unspecified 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 J45.90?
There is no direct ICD-11 mapping available for J45.90 in the WHO crosswalk tables. This may mean the concept is classified differently in ICD-11. Use the ICD-10 to ICD-11 converter to search for related codes.
Automate ICD-10 Coding With AI
Send clinical text to the AutoICD API and get back structured ICD-10 codes with confidence scores. Integrates into any EHR or billing system in minutes.
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.