MCMedicalCodingSoftware
203

MS-DRG 203: BRONCHITIS AND ASTHMA WITHOUT CC/MCC

DRGMedicalMDC 04

MS-DRG 203 is bronchitis and asthma without cc/mcc, in MDC 04 (a medical DRG), at the without-CC/MCC level. Its FY2027 relative weight is 0.6512, so a case here pays less than the average Medicare inpatient stay (weight 1.0), with a geometric mean length of stay of 2.10 days. 47 ICD-10-CM principal diagnoses group into MS-DRGs 202–203 under the CMS definitions manual; the most-searched are listed below.

FY2027 payment factors

Relative weight
0.6512
Geometric mean LOS
2.10
Arithmetic mean LOS
2.60
Post-acute transfer
No

Principal diagnoses that group to MS-DRGs 202–203

From the CMS MS-DRG definitions manual’s principal-diagnosis index: 47 ICD-10-CM codes route here, and the CC/MCC status of the secondary diagnoses decides which of 202–203 the case lands in. The 24 most-searched:

  • J45.909Unspecified asthma, uncomplicated
  • J40Bronchitis, not specified as acute or chronic
  • J20.9Acute bronchitis, unspecified
  • J45.20Mild intermittent asthma, uncomplicated
  • J41.0Simple chronic bronchitis
  • J45.40Moderate persistent asthma, uncomplicated
  • J45.50Severe persistent asthma, uncomplicated
  • J45.901Unspecified asthma with (acute) exacerbation
  • J45.30Mild persistent asthma, uncomplicated
  • J45.41Moderate persistent asthma with (acute) exacerbation
  • J45.51Severe persistent asthma with (acute) exacerbation
  • J45.998Other asthma
  • J20.8Acute bronchitis due to other specified organisms
  • J21.0Acute bronchiolitis due to respiratory syncytial virus
  • J21.9Acute bronchiolitis, unspecified
  • J39.8Other specified diseases of upper respiratory tract
  • J45.21Mild intermittent asthma with (acute) exacerbation
  • J98.01Acute bronchospasm
  • J45.31Mild persistent asthma with (acute) exacerbation
  • J45.902Unspecified asthma with status asthmaticus
  • J98.09Other diseases of bronchus, not elsewhere classified
  • J20.0Acute bronchitis due to Mycoplasma pneumoniae
  • J20.5Acute bronchitis due to respiratory syncytial virus
  • J20.6Acute bronchitis due to rhinovirus

23 more codes group here. Open any code above for its full hierarchy, or check a whole claim in the free DRG calculator.

The severity splits

Same base DRG, split by whether a secondary diagnosis is a CC or MCC. The last column is the weight change from MS-DRG 203.

202BRONCHITIS AND ASTHMA WITH CC/MCC0.9474+0.2962
203BRONCHITIS AND ASTHMA WITHOUT CC/MCC0.6512

All FY2027 MS-DRGs · MDC 04

MS-DRG (IPPS Table 5)FY2027