DRG 184
Medical DRGMajor Chest Trauma with CC
What is MS-DRG 184?
MS-DRG 184 is a Medical Medicare Severity Diagnosis Related Group under Major Diagnostic Category 04 (MDC 04) with a Complication or Comorbidity (CC). It maps to 61 ICD-10-CM diagnosis codes. For FY 2026 it carries a relative weight of 1.0641 with a geometric mean length of stay of 3.1 days and an arithmetic mean of 3.7 days. Hospitals use this grouping to determine reimbursement for inpatient stays under Medicare.
FY 2026 Payment Data
Official values from Table 5 of the FY 2026 IPPS Final Rule (CMS).
Related MS-DRGs in This Severity Group
The same clinical condition is split into separate DRGs by complication severity. MCC pays more than CC, which pays more than no CC/MCC.
Linked ICD-10-CM Diagnosis Mappings
- M96.A4
Flail chest associated with chest compression and cardiopulmonary resuscitation
BillableChapter 13 - M99.18
Subluxation complex (vertebral) of rib cage
BillableChapter 13 - S11.019S
Unspecified open wound of larynx, sequela
BillableChapter 19 - S11.021S
Laceration without foreign body of trachea, sequela
BillableChapter 19 - S11.022S
Laceration with foreign body of trachea, sequela
BillableChapter 19 - S11.023S
Puncture wound without foreign body of trachea, sequela
BillableChapter 19 - S11.024S
Puncture wound with foreign body of trachea, sequela
BillableChapter 19 - S11.025S
Open bite of trachea, sequela
BillableChapter 19 - S22.31XB
Fracture of one rib, right side, initial encounter for open fracture
BillableChapter 19 - S22.32XB
Fracture of one rib, left side, initial encounter for open fracture
BillableChapter 19 - S22.39XB
Fracture of one rib, unspecified side, initial encounter for open fracture
BillableChapter 19 - S22.41XA
Multiple fractures of ribs, right side, initial encounter for closed fracture
BillableChapter 19 - S22.41XB
Multiple fractures of ribs, right side, initial encounter for open fracture
BillableChapter 19 - S22.42XA
Multiple fractures of ribs, left side, initial encounter for closed fracture
BillableChapter 19 - S22.42XB
Multiple fractures of ribs, left side, initial encounter for open fracture
BillableChapter 19 - S22.43XA
Multiple fractures of ribs, bilateral, initial encounter for closed fracture
BillableChapter 19 - S22.43XB
Multiple fractures of ribs, bilateral, initial encounter for open fracture
BillableChapter 19 - S22.49XA
Multiple fractures of ribs, unspecified side, initial encounter for closed fracture
BillableChapter 19 - S22.49XB
Multiple fractures of ribs, unspecified side, initial encounter for open fracture
BillableChapter 19 - S22.5XXA
Flail chest, initial encounter for closed fracture
BillableChapter 19 - S22.5XXB
Flail chest, initial encounter for open fracture
BillableChapter 19 - S27.331A
Laceration of lung, unilateral, initial encounter
BillableChapter 19 - S27.332A
Laceration of lung, bilateral, initial encounter
BillableChapter 19 - S27.339A
Laceration of lung, unspecified, initial encounter
BillableChapter 19 - S27.401A
Unspecified injury of bronchus, unilateral, initial encounter
BillableChapter 19 - S27.402A
Unspecified injury of bronchus, bilateral, initial encounter
BillableChapter 19 - S27.409A
Unspecified injury of bronchus, unspecified, initial encounter
BillableChapter 19 - S27.411A
Primary blast injury of bronchus, unilateral, initial encounter
BillableChapter 19 - S27.412A
Primary blast injury of bronchus, bilateral, initial encounter
BillableChapter 19 - S27.419A
Primary blast injury of bronchus, unspecified, initial encounter
BillableChapter 19 - S27.421A
Contusion of bronchus, unilateral, initial encounter
BillableChapter 19 - S27.422A
Contusion of bronchus, bilateral, initial encounter
BillableChapter 19 - S27.429A
Contusion of bronchus, unspecified, initial encounter
BillableChapter 19 - S27.431A
Laceration of bronchus, unilateral, initial encounter
BillableChapter 19 - S27.432A
Laceration of bronchus, bilateral, initial encounter
BillableChapter 19 - S27.439A
Laceration of bronchus, unspecified, initial encounter
BillableChapter 19 - S27.491A
Other injury of bronchus, unilateral, initial encounter
BillableChapter 19 - S27.492A
Other injury of bronchus, bilateral, initial encounter
BillableChapter 19 - S27.499A
Other injury of bronchus, unspecified, initial encounter
BillableChapter 19 - S27.802A
Contusion of diaphragm, initial encounter
BillableChapter 19 - S27.803A
Laceration of diaphragm, initial encounter
BillableChapter 19 - S27.808A
Other injury of diaphragm, initial encounter
BillableChapter 19 - S27.809A
Unspecified injury of diaphragm, initial encounter
BillableChapter 19 - S43.201A
Unspecified subluxation of right sternoclavicular joint, initial encounter
BillableChapter 19 - S43.202A
Unspecified subluxation of left sternoclavicular joint, initial encounter
BillableChapter 19 - S43.203A
Unspecified subluxation of unspecified sternoclavicular joint, initial encounter
BillableChapter 19 - S43.204A
Unspecified dislocation of right sternoclavicular joint, initial encounter
BillableChapter 19 - S43.205A
Unspecified dislocation of left sternoclavicular joint, initial encounter
BillableChapter 19 - S43.206A
Unspecified dislocation of unspecified sternoclavicular joint, initial encounter
BillableChapter 19 - S43.211A
Anterior subluxation of right sternoclavicular joint, initial encounter
BillableChapter 19 - S43.212A
Anterior subluxation of left sternoclavicular joint, initial encounter
BillableChapter 19 - S43.213A
Anterior subluxation of unspecified sternoclavicular joint, initial encounter
BillableChapter 19 - S43.214A
Anterior dislocation of right sternoclavicular joint, initial encounter
BillableChapter 19 - S43.215A
Anterior dislocation of left sternoclavicular joint, initial encounter
BillableChapter 19 - S43.216A
Anterior dislocation of unspecified sternoclavicular joint, initial encounter
BillableChapter 19 - S43.221A
Posterior subluxation of right sternoclavicular joint, initial encounter
BillableChapter 19 - S43.222A
Posterior subluxation of left sternoclavicular joint, initial encounter
BillableChapter 19 - S43.223A
Posterior subluxation of unspecified sternoclavicular joint, initial encounter
BillableChapter 19 - S43.224A
Posterior dislocation of right sternoclavicular joint, initial encounter
BillableChapter 19 - S43.225A
Posterior dislocation of left sternoclavicular joint, initial encounter
BillableChapter 19 - S43.226A
Posterior dislocation of unspecified sternoclavicular joint, initial encounter
BillableChapter 19
