J45.52 – Severe persistent asthma with status asthmaticus

ICD-10-CM 2027 diagnosis code · Chronic lower respiratory diseases

Billable code

ICD-10-CM code J45.52

Code: J45.52 (claims format: J4552)
Description: Severe persistent asthma with status asthmaticus
Billable: Yes – valid for HIPAA-covered transactions
Valid for: Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter: 10. Diseases of the respiratory system (J00-J99)
Block: J40-J4B Chronic lower respiratory diseases
Parent codes: J45 › J45.5

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

J45 – Asthma

Includes:

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

Excludes1 (not coded here):

detergent asthma (J69.8)
miner's asthma (J60)
wheezing NOS (R06.2)
wood asthma (J67.8)

Excludes2 (not included here):

asthma with chronic obstructive pulmonary disease (J44.89)
chronic asthmatic (obstructive) bronchitis (J44.89)
chronic obstructive asthma (J44.89)
other specified chronic obstructive pulmonary disease (J44.89)

Use additional code:

code to identify:
eosinophilic asthma (J82.83)
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)

Block J40-J4B

Excludes1 (not coded here):

bronchitis due to chemicals, gases, fumes and vapors (J68.0)

Excludes2 (not included here):

cystic fibrosis (E84.-)

Index terms for J45.52

Entries in the ICD-10-CM alphabetic index that lead to this code:

Related codes in J45.5

Frequently asked questions

What is ICD-10 code J45.52?

J45.52 is the ICD-10-CM code for severe persistent asthma with status asthmaticus, in the block J40-J4B (Chronic lower respiratory diseases).

Is J45.52 a billable code?

Yes. J45.52 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.

What category does J45.52 belong to?

It belongs to category J45 – Asthma.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.