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    v1.0.28
    OpenPayerBilling CodesChronic lower respiratory diseasesICD-10-CM j40-bronchitis-not-specified
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    ICD-10-CM Code For Bronchitis Not Specified As Acute Or Chronic: Group Overview

    The International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM) code group J40 includes diagnoses of bronchitis that are not specified as acute or chronic, capturing nonspecific bronchial inflammation and related clinical descriptors. These ICD-10-CM diagnosis codes are used to document encounters for bronchitic symptoms when duration or chronicity is not stated, capturing disease severity, organ involvement, or clinical complexity relevant to this group. Accurate coding within the ICD-10-CM J40 group supports proper claim adjudication, complete clinical documentation, and appropriate reimbursement.

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    ICD-10-CM J40: Bronchitis, Not Specified As Acute Or Chronic Overview

    The ICD-10-CM J40 group represents diagnoses of bronchitis that are not explicitly documented as acute or chronic and targets inflammatory conditions of the bronchial airways in the lower respiratory tract. These codes apply to patients with bronchitic symptoms where the duration or chronicity is not specified by the clinician. Accurate coding matters for complete clinical documentation and supports appropriate reimbursement by reflecting the level of care provided.

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    When to Use

    Use a code from this group when the clinical record documents bronchitis without indicating whether it is acute or chronic, and no more specific bronchitis code is supported by the documentation. These codes apply to encounters focused on evaluation, treatment, or ongoing management when chronicity is not established.

    ICD-10-CM Codes

    1 rows

    ICD-10-CM CodeDescription
    J40Bronchitis, not specified as acute or chronic

    DRG Codes

    2 rows

    DRG CodeDescription
    202Bronchitis and Asthma with CC/MCC
    203Bronchitis and Asthma without CC/MCC

    Typical Clinical Scenarios

    • A middle-aged adult presents to urgent care with several days of productive cough, wheezing, and mild dyspnea after a recent upper respiratory infection; examination shows diffuse bronchial rhonchi without focal consolidation on lung exam and normal oxygen saturation. The clinician documents bronchitis without specifying acute or chronic features and assigns a code from this group to capture the presenting lower airway inflammation. Typical codes: J40
    • An older patient with a long smoking history attends a primary care follow-up for persistent cough and sputum production that has waxed and waned for months but without documented airflow limitation on recent spirometry; the clinician records bronchitis not specified as acute or chronic as part of the chronic lower respiratory disease problem list to reflect ongoing symptoms. Typical codes: J40
    • A hospitalized patient admitted for an exacerbation of congestive heart failure is found to have increased cough and sputum noted by the team, without radiographic evidence of pneumonia and no clear acute bronchitic episode documented; the care team records bronchitis not specified as acute or chronic as a comorbid respiratory diagnosis contributing to symptom burden during the admission. Typical codes: J40

    Related Codes

    J41-SIMPLE-AND-MUCOPURULENT-CHRONIC-BRONCHITIS

    ICD-10-CM Code For Simple And Mucopurulent Chronic Bronchitis: Group Overview

    J42-UNSPECIFIED-CHRONIC-BRONCHITIS

    ICD-10-CM Code For Unspecified Chronic Bronchitis: Group Overview

    J43-EMPHYSEMA

    ICD-10-CM Code For Emphysema: Group Overview

    J44-OTHER-CHRONIC-OBSTRUCTIVE-PULMONARY-DISEASE

    ICD-10-CM Code For Other Chronic Obstructive Pulmonary Disease: Group Overview

    J45-ASTHMA

    ICD-10-CM Code For Asthma: Group Overview

    J47-BRONCHIECTASIS

    ICD-10-CM Code For Bronchiectasis: Group Overview

    J4A-CHRONIC-LUNG-ALLOGRAFT-DYSFUNCTION

    ICD-10-CM Code For Chronic Lung Allograft Dysfunction: Group Overview

    Frequently Asked Questions

    References

    1. 1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
    2. 2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
    3. 3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.
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