MS-DRG 183Medical
Major Chest Trauma with MCC
Major Diagnostic Category 04·Grouped by diagnosis·FY 2027
MS-DRG 183 is a Medical Medicare Severity Diagnosis Related Group under Major Diagnostic Category 04 (MDC 04) with a Major Complication or Comorbidity (MCC). It maps to 61 ICD-10-CM diagnosis codes. For FY 2027 it carries a relative weight of 1.4903 with a geometric mean length of stay of 4.1 days and an arithmetic mean of 5.2 days. Hospitals use this grouping to determine reimbursement for inpatient stays under Medicare.
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FY 2027 payment data
From Table 5 of the FY 2027 IPPS Final Rule (CMS).
- Relative weight:
- 1.4903 (payment multiplier vs. the average case (1.0))
- Geometric mean stay:
- 4.1 days (used for transfer payments)
- Average stay:
- 5.2 days (arithmetic mean)
- Post-acute transfer policy:
- No (not subject to it)
Same condition, other severity levels
CMS splits one condition into separate DRGs by how sick the patient is. With MCC pays more than with CC, which pays more than without CC/MCC.
Diagnosis codes (61)
As the principal diagnosis, these ICD-10-CM codes can group to DRG 183. 100% of the codes listed are billable.
- M96.A4Flail chest associated with chest compression and cardiopulmonary resuscitation
- M99.18Subluxation complex (vertebral) of rib cage
- S11.019SUnspecified open wound of larynx, sequela
- S11.021SLaceration without foreign body of trachea, sequela
- S11.022SLaceration with foreign body of trachea, sequela
- S11.023SPuncture wound without foreign body of trachea, sequela
- S11.024SPuncture wound with foreign body of trachea, sequela
- S11.025SOpen bite of trachea, sequela
- S22.31XBFracture of one rib, right side, initial encounter for open fracture
- S22.32XBFracture of one rib, left side, initial encounter for open fracture
- S22.39XBFracture of one rib, unspecified side, initial encounter for open fracture
- S22.41XAMultiple fractures of ribs, right side, initial encounter for closed fracture
- S22.41XBMultiple fractures of ribs, right side, initial encounter for open fracture
- S22.42XAMultiple fractures of ribs, left side, initial encounter for closed fracture
- S22.42XBMultiple fractures of ribs, left side, initial encounter for open fracture
- S22.43XAMultiple fractures of ribs, bilateral, initial encounter for closed fracture
- S22.43XBMultiple fractures of ribs, bilateral, initial encounter for open fracture
- S22.49XAMultiple fractures of ribs, unspecified side, initial encounter for closed fracture
- S22.49XBMultiple fractures of ribs, unspecified side, initial encounter for open fracture
- S22.5XXAFlail chest, initial encounter for closed fracture
- S22.5XXBFlail chest, initial encounter for open fracture
- S27.331ALaceration of lung, unilateral, initial encounter
- S27.332ALaceration of lung, bilateral, initial encounter
- S27.339ALaceration of lung, unspecified, initial encounter
- S27.401AUnspecified injury of bronchus, unilateral, initial encounter
- S27.402AUnspecified injury of bronchus, bilateral, initial encounter
- S27.409AUnspecified injury of bronchus, unspecified, initial encounter
- S27.411APrimary blast injury of bronchus, unilateral, initial encounter
- S27.412APrimary blast injury of bronchus, bilateral, initial encounter
- S27.419APrimary blast injury of bronchus, unspecified, initial encounter
- S27.421AContusion of bronchus, unilateral, initial encounter
- S27.422AContusion of bronchus, bilateral, initial encounter
- S27.429AContusion of bronchus, unspecified, initial encounter
- S27.431ALaceration of bronchus, unilateral, initial encounter
- S27.432ALaceration of bronchus, bilateral, initial encounter
- S27.439ALaceration of bronchus, unspecified, initial encounter
- S27.491AOther injury of bronchus, unilateral, initial encounter
- S27.492AOther injury of bronchus, bilateral, initial encounter
- S27.499AOther injury of bronchus, unspecified, initial encounter
- S27.802AContusion of diaphragm, initial encounter
- S27.803ALaceration of diaphragm, initial encounter
- S27.808AOther injury of diaphragm, initial encounter
- S27.809AUnspecified injury of diaphragm, initial encounter
- S43.201AUnspecified subluxation of right sternoclavicular joint, initial encounter
- S43.202AUnspecified subluxation of left sternoclavicular joint, initial encounter
- S43.203AUnspecified subluxation of unspecified sternoclavicular joint, initial encounter
- S43.204AUnspecified dislocation of right sternoclavicular joint, initial encounter
- S43.205AUnspecified dislocation of left sternoclavicular joint, initial encounter
- S43.206AUnspecified dislocation of unspecified sternoclavicular joint, initial encounter
- S43.211AAnterior subluxation of right sternoclavicular joint, initial encounter
- S43.212AAnterior subluxation of left sternoclavicular joint, initial encounter
- S43.213AAnterior subluxation of unspecified sternoclavicular joint, initial encounter
- S43.214AAnterior dislocation of right sternoclavicular joint, initial encounter
- S43.215AAnterior dislocation of left sternoclavicular joint, initial encounter
- S43.216AAnterior dislocation of unspecified sternoclavicular joint, initial encounter
- S43.221APosterior subluxation of right sternoclavicular joint, initial encounter
- S43.222APosterior subluxation of left sternoclavicular joint, initial encounter
- S43.223APosterior subluxation of unspecified sternoclavicular joint, initial encounter
- S43.224APosterior dislocation of right sternoclavicular joint, initial encounter
- S43.225APosterior dislocation of left sternoclavicular joint, initial encounter
- S43.226APosterior dislocation of unspecified sternoclavicular joint, initial encounter