DRG 180
Medical DRGRespiratory Neoplasms with MCC
What is MS-DRG 180?
MS-DRG 180 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 62 ICD-10-CM diagnosis codes. For FY 2026 it carries a relative weight of 1.7660 with a geometric mean length of stay of 4.8 days and an arithmetic mean of 6.5 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
- C33
Malignant neoplasm of trachea
BillableChapter 2 - C34.00
Malignant neoplasm of unspecified main bronchus
BillableChapter 2 - C34.01
Malignant neoplasm of right main bronchus
BillableChapter 2 - C34.02
Malignant neoplasm of left main bronchus
BillableChapter 2 - C34.10
Malignant neoplasm of upper lobe, unspecified bronchus or lung
BillableChapter 2 - C34.11
Malignant neoplasm of upper lobe, right bronchus or lung
BillableChapter 2 - C34.12
Malignant neoplasm of upper lobe, left bronchus or lung
BillableChapter 2 - C34.2
Malignant neoplasm of middle lobe, bronchus or lung
BillableChapter 2 - C34.30
Malignant neoplasm of lower lobe, unspecified bronchus or lung
BillableChapter 2 - C34.31
Malignant neoplasm of lower lobe, right bronchus or lung
BillableChapter 2 - C34.32
Malignant neoplasm of lower lobe, left bronchus or lung
BillableChapter 2 - C34.80
Malignant neoplasm of overlapping sites of unspecified bronchus and lung
BillableChapter 2 - C34.81
Malignant neoplasm of overlapping sites of right bronchus and lung
BillableChapter 2 - C34.82
Malignant neoplasm of overlapping sites of left bronchus and lung
BillableChapter 2 - C34.90
Malignant neoplasm of unspecified part of unspecified bronchus or lung
BillableChapter 2 - C34.91
Malignant neoplasm of unspecified part of right bronchus or lung
BillableChapter 2 - C34.92
Malignant neoplasm of unspecified part of left bronchus or lung
BillableChapter 2 - C38.1
Malignant neoplasm of anterior mediastinum
BillableChapter 2 - C38.2
Malignant neoplasm of posterior mediastinum
BillableChapter 2 - C38.3
Malignant neoplasm of mediastinum, part unspecified
BillableChapter 2 - C38.4
Malignant neoplasm of pleura
BillableChapter 2 - C38.8
Malignant neoplasm of overlapping sites of heart, mediastinum and pleura
BillableChapter 2 - C39.9
Malignant neoplasm of lower respiratory tract, part unspecified
BillableChapter 2 - C45.0
Mesothelioma of pleura
BillableChapter 2 - C46.50
Kaposi's sarcoma of unspecified lung
BillableChapter 2 - C46.51
Kaposi's sarcoma of right lung
BillableChapter 2 - C46.52
Kaposi's sarcoma of left lung
BillableChapter 2 - C76.1
Malignant neoplasm of thorax
BillableChapter 2 - C78.00
Secondary malignant neoplasm of unspecified lung
BillableChapter 2 - C78.01
Secondary malignant neoplasm of right lung
BillableChapter 2 - C78.02
Secondary malignant neoplasm of left lung
BillableChapter 2 - C78.1
Secondary malignant neoplasm of mediastinum
BillableChapter 2 - C78.2
Secondary malignant neoplasm of pleura
BillableChapter 2 - C78.30
Secondary malignant neoplasm of unspecified respiratory organ
BillableChapter 2 - C78.39
Secondary malignant neoplasm of other respiratory organs
BillableChapter 2 - C7A.090
Malignant carcinoid tumor of the bronchus and lung
BillableChapter 2 - D02.1
Carcinoma in situ of trachea
BillableChapter 2 - D02.20
Carcinoma in situ of unspecified bronchus and lung
BillableChapter 2 - D02.21
Carcinoma in situ of right bronchus and lung
BillableChapter 2 - D02.22
Carcinoma in situ of left bronchus and lung
BillableChapter 2 - D02.3
Carcinoma in situ of other parts of respiratory system
BillableChapter 2 - D02.4
Carcinoma in situ of respiratory system, unspecified
BillableChapter 2 - D14.2
Benign neoplasm of trachea
BillableChapter 2 - D14.30
Benign neoplasm of unspecified bronchus and lung
BillableChapter 2 - D14.31
Benign neoplasm of right bronchus and lung
BillableChapter 2 - D14.32
Benign neoplasm of left bronchus and lung
BillableChapter 2 - D14.4
Benign neoplasm of respiratory system, unspecified
BillableChapter 2 - D15.2
Benign neoplasm of mediastinum
BillableChapter 2 - D15.7
Benign neoplasm of other specified intrathoracic organs
BillableChapter 2 - D15.9
Benign neoplasm of intrathoracic organ, unspecified
BillableChapter 2 - D16.7
Benign neoplasm of ribs, sternum and clavicle
BillableChapter 2 - D17.4
Benign lipomatous neoplasm of intrathoracic organs
BillableChapter 2 - D19.0
Benign neoplasm of mesothelial tissue of pleura
BillableChapter 2 - D38.1
Neoplasm of uncertain behavior of trachea, bronchus and lung
BillableChapter 2 - D38.2
Neoplasm of uncertain behavior of pleura
BillableChapter 2 - D38.3
Neoplasm of uncertain behavior of mediastinum
BillableChapter 2 - D38.4
Neoplasm of uncertain behavior of thymus
BillableChapter 2 - D38.5
Neoplasm of uncertain behavior of other respiratory organs
BillableChapter 2 - D38.6
Neoplasm of uncertain behavior of respiratory organ, unspecified
BillableChapter 2 - D3A.090
Benign carcinoid tumor of the bronchus and lung
BillableChapter 2 - D49.1
Neoplasm of unspecified behavior of respiratory system
BillableChapter 2 - J91.0
Malignant pleural effusion
BillableChapter 10