Billable / Specific Code
ICD-10-CM J45.40 is the diagnosis code for Moderate persistent asthma, uncomplicated. This code falls under the section "Chronic lower respiratory diseases" within Chapter 10 — Diseases of the respiratory system (J00-J99). It is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
Understanding where J45.40 sits in the ICD-10-CM classification helps ensure proper coding:
Yes, J45.40 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
J45.40 is the ICD-10-CM diagnosis code for "Moderate persistent asthma, uncomplicated". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
The parent code of J45.40 is J45.4 ("Moderate persistent asthma"). J45.40 provides a more specific classification within this category.
J45.40 is located in Section J40-J4A — "Chronic lower respiratory diseases" within Chapter 10 of the ICD-10-CM Tabular List.
J45.40 has 1918 sub-code(s) that provide more specific detail: A00, A01, A02, A03, A04 and more.
Use J45.40 when the patients documented diagnosis matches "Moderate persistent asthma, uncomplicated" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.
The ICD-10-CM code for Moderate persistent asthma, uncomplicated is J45.40.
Yes, J45.40 can be used as a primary diagnosis code since it is billable and specific.
J45.40 is in Chapter 10 of the ICD-10-CM Tabular List.
Yes, J45.40 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.