ICD-10-CM J45 is the diagnosis code for Asthma. This code falls under the section "Chronic lower respiratory diseases" within Chapter 10 â Diseases of the respiratory system (J00-J99). It is a non-billable/non-specific ICD-10-CM code that should not be used for reimbursement. A more specific sub-code is required for billing. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
The following conditions should never be coded at the same time as J45. They are mutually exclusive:
The following conditions are not included in J45. If the patient has both, code each condition separately:
Understanding where J45 sits in the ICD-10-CM classification helps ensure proper coding:
No, J45 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.
J45 is the ICD-10-CM diagnosis code for "Asthma". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
J45 is located in Section J40-J4A â "Chronic lower respiratory diseases" within Chapter 10 of the ICD-10-CM Tabular List.
J45 has 5 sub-code(s) that provide more specific detail: J45.2, J45.3, J45.4, J45.5, J45.9.
Use J45 when the patients documented diagnosis matches "Asthma" 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 Asthma is J45.
No, J45 is non-billable. Use a more specific sub-code for primary diagnosis billing.
J45 is in Chapter 10 of the ICD-10-CM Tabular List.
Type 1 Excludes for J45 include: detergent asthma (J69.8); miner's asthma (J60); wheezing NOS (R06.2) and more.
Yes, J45 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.