J45.9
Non-billableOther and unspecified asthma
Other and unspecified 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 (2)
Related Codes(4)
Related Conditions
ICD-11 Equivalents(1)
ICD-11 Equivalents
View full mappingCorresponding ICD-11 codes from the WHO crosswalk mapping
Also Known As / Clinical Terms(1)
Frequently Asked Questions
What is the ICD-10 code for other and unspecified asthma?
The ICD-10-CM code for other and unspecified asthma is J45.9. The full clinical description is "Other and unspecified asthma". J45.9 is a non-billable header code. Use a more specific child code for billing purposes.
What does ICD-10 code J45.9 mean?
ICD-10-CM code J45.9 represents “Other and 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 J45.9 a billable code?
No, J45.9 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 2 child codes under J45.9.
What chapter is J45.9 in?
J45.9 is in Chapter 10: Diseases of the Respiratory System (codes J00-J99).
What codes cannot be used with J45.9?
J45.9 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 J45.9?
J45.9 has 2 child codes, including: J45.90 (Unspecified asthma), J45.99 (Other asthma).
Are additional codes required with J45.9?
Yes, when using J45.9, 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 J45.9?
J45.9 is linked to 1 UMLS Concept Unique Identifier: C0810292. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does J45.9 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like other and 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 J45.9?
J45.9 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.