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  3. Diagnosis Codes in MS-DRG 202 - Bronchitis And Asthma With CC/MCC

Diagnosis Codes in MS-DRG 202 - Bronchitis And Asthma With CC/MCC

The Medicare Severity Diagnosis-Related Group (MS-DRG) is a patient classification system used to categorize hospital cases based on clinical similarity and expected resource use. MS-DRGs organize all possible principal diagnoses into mutually exclusive groups known as Major Diagnostic Categories (MDCs), which help determine reimbursement under the Medicare Inpatient Prospective Payment System.

This section lists the diagnosis codes included in MS-DRG V42.0: Bronchitis and Asthma with CC/MCC from October 1, 2024, through September 30, 2025.

MS-DRG: 202

MS-DRG Title: Bronchitis and Asthma with CC/MCC

MCD: 04

Relative Weight: 0.9667 Relative Weight
The relative weight of a diagnostic related group determines the reimbursement rate based on the severity of a patient's illness and the associated cost of care during hospitalization.

Geometric LOS: 0.97 Geometric Length of Stay
The geometric mean length of stay (GMLOS) is used by Medicare to calculate the reimbursement for patients whose medical treatment takes a much longer or shorter time than average.

Arithmetic LOS: 2.90 Arithmetic Length of Stay
The average length of stay (ALOS) reflects the average number of days a patient spends in a hospital for each admission.

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    • J40 - Bronchitis, not specified as acute or chronic

  • A37.0 - Whooping cough due to Bordetella pertussis

    • A37.00 - Whooping cough due to Bordetella pertussis without pneumonia

    • A37.01 - Whooping cough due to Bordetella pertussis with pneumonia

  • A37.1 - Whooping cough due to Bordetella parapertussis

    • A37.10 - Whooping cough due to Bordetella parapertussis without pneumonia

    • A37.11 - Whooping cough due to Bordetella parapertussis with pneumonia

  • A37.8 - Whooping cough due to other Bordetella species

    • A37.80 - Whooping cough due to other Bordetella species without pneumonia

    • A37.81 - Whooping cough due to other Bordetella species with pneumonia

  • A37.9 - Whooping cough, unspecified species

    • A37.90 - Whooping cough, unspecified species without pneumonia

    • A37.91 - Whooping cough, unspecified species with pneumonia

  • J04.1 - Acute tracheitis

    • J04.10 - Acute tracheitis without obstruction

    • J04.11 - Acute tracheitis with obstruction

  • J20 - Acute bronchitis

    • J20.0 - Acute bronchitis due to Mycoplasma pneumoniae

    • J20.1 - Acute bronchitis due to Hemophilus influenzae

    • J20.2 - Acute bronchitis due to streptococcus

    • J20.3 - Acute bronchitis due to coxsackievirus

    • J20.4 - Acute bronchitis due to parainfluenza virus

    • J20.5 - Acute bronchitis due to respiratory syncytial virus

    • J20.6 - Acute bronchitis due to rhinovirus

    • J20.7 - Acute bronchitis due to echovirus

    • J20.8 - Acute bronchitis due to other specified organisms

    • J20.9 - Acute bronchitis, unspecified

  • J21 - Acute bronchiolitis

    • J21.0 - Acute bronchiolitis due to respiratory syncytial virus

    • J21.1 - Acute bronchiolitis due to human metapneumovirus

    • J21.8 - Acute bronchiolitis due to other specified organisms

    • J21.9 - Acute bronchiolitis, unspecified

  • J39 - Other diseases of upper respiratory tract

    • J39.8 - Other specified diseases of upper respiratory tract

  • J41 - Simple and mucopurulent chronic bronchitis

    • J41.0 - Simple chronic bronchitis

  • J45.2 - Mild intermittent asthma

    • J45.20 - Mild intermittent asthma, uncomplicated

    • J45.21 - Mild intermittent asthma with (acute) exacerbation

    • J45.22 - Mild intermittent asthma with status asthmaticus

  • J45.3 - Mild persistent asthma

    • J45.30 - Mild persistent asthma, uncomplicated

    • J45.31 - Mild persistent asthma with (acute) exacerbation

    • J45.32 - Mild persistent asthma with status asthmaticus

  • J45.4 - Moderate persistent asthma

    • J45.40 - Moderate persistent asthma, uncomplicated

    • J45.41 - Moderate persistent asthma with (acute) exacerbation

    • J45.42 - Moderate persistent asthma with status asthmaticus

  • J45.5 - Severe persistent asthma

    • J45.50 - Severe persistent asthma, uncomplicated

    • J45.51 - Severe persistent asthma with (acute) exacerbation

    • J45.52 - Severe persistent asthma with status asthmaticus

  • J45.90 - Unspecified asthma

    • J45.901 - Unspecified asthma with (acute) exacerbation

    • J45.902 - Unspecified asthma with status asthmaticus

    • J45.909 - Unspecified asthma, uncomplicated

  • J45.99 - Other asthma

  • J98.0 - Diseases of bronchus, not elsewhere classified

    • J98.01 - Acute bronchospasm

    • J98.09 - Other diseases of bronchus, not elsewhere classified