All ICD10 Codes

DRG 159

Medical DRG

Dental and Oral Diseases without CC/MCC

TypeMedicalMDC03Dx Codes75

What is MS-DRG 159?

MS-DRG 159 is a Medical Medicare Severity Diagnosis Related Group under Major Diagnostic Category 03 (MDC 03) without a significant Complication or Comorbidity. It maps to 75 ICD-10-CM diagnosis codes. For FY 2026 it carries a relative weight of 0.7085 with a geometric mean length of stay of 2.1 days and an arithmetic mean of 2.5 days. Hospitals use this grouping to determine reimbursement for inpatient stays under Medicare.

Classification
Medical DRG
Diagnosis-driven grouping
MDC
Major Diagnostic Category 03
Linked Codes
75 diagnosis
Billable Dx
100%
75 of 75 shown

FY 2026 Payment Data

Official values from Table 5 of the FY 2026 IPPS Final Rule (CMS).

Relative Weight
0.7085
Payment multiplier vs. average case (1.0)
Geometric Mean LOS
2.1 days
Used for transfer payment calculations
Arithmetic Mean LOS
2.5 days
Average length of stay
Post-Acute Transfer
No
Not subject to the transfer policy

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.

DRGTitleRel. WeightGMLOS
157Dental and Oral Diseases with MCC1.71684.5 days
158Dental and Oral Diseases with CC0.90982.8 days
159Dental and Oral Diseases without CC/MCCThis page0.70852.1 days

Linked ICD-10-CM Diagnosis Mappings

  • A68.9

    Relapsing fever, unspecified

    BillableChapter 1
  • B00.1

    Herpesviral vesicular dermatitis

    BillableChapter 1
  • B36.9

    Superficial mycosis, unspecified

    BillableChapter 1
  • B37.82

    Candidal enteritis

    BillableChapter 1
  • D09.9

    Carcinoma in situ, unspecified

    BillableChapter 2
  • D16.32

    Benign neoplasm of short bones of left lower limb

    BillableChapter 2
  • J99

    Respiratory disorders in diseases classified elsewhere

    BillableChapter 10
  • M25.9

    Joint disorder, unspecified

    BillableChapter 13
  • Q18.4

    Macrostomia

    BillableChapter 17
  • Q18.5

    Microstomia

    BillableChapter 17
  • Q18.6

    Macrocheilia

    BillableChapter 17
  • Q18.7

    Microcheilia

    BillableChapter 17
  • Q34.9

    Congenital malformation of respiratory system, unspecified

    BillableChapter 17
  • Q38.5

    Congenital malformations of palate, not elsewhere classified

    BillableChapter 17
  • R68.83

    Chills (without fever)

    BillableChapter 18
  • S01.459S

    Open bite of unspecified cheek and temporomandibular area, sequela

    BillableChapter 19
  • S01.501S

    Unspecified open wound of lip, sequela

    BillableChapter 19
  • S01.502S

    Unspecified open wound of oral cavity, sequela

    BillableChapter 19
  • S01.511S

    Laceration without foreign body of lip, sequela

    BillableChapter 19
  • S01.512S

    Laceration without foreign body of oral cavity, sequela

    BillableChapter 19
  • S01.521S

    Laceration with foreign body of lip, sequela

    BillableChapter 19
  • S01.522S

    Laceration with foreign body of oral cavity, sequela

    BillableChapter 19
  • S01.531S

    Puncture wound without foreign body of lip, sequela

    BillableChapter 19
  • S01.532S

    Puncture wound without foreign body of oral cavity, sequela

    BillableChapter 19
  • S01.541S

    Puncture wound with foreign body of lip, sequela

    BillableChapter 19
  • S01.542S

    Puncture wound with foreign body of oral cavity, sequela

    BillableChapter 19
  • S01.551S

    Open bite of lip, sequela

    BillableChapter 19
  • S02.32XS

    Fracture of orbital floor, left side, sequela

    BillableChapter 19
  • S02.400S

    Malar fracture, unspecified side, sequela

    BillableChapter 19
  • S02.401S

    Maxillary fracture, unspecified side, sequela

    BillableChapter 19
  • S02.402S

    Zygomatic fracture, unspecified side, sequela

    BillableChapter 19
  • S02.40AS

    Malar fracture, right side, sequela

    BillableChapter 19
  • S02.40BS

    Malar fracture, left side, sequela

    BillableChapter 19
  • S02.40CS

    Maxillary fracture, right side, sequela

    BillableChapter 19
  • S02.40DS

    Maxillary fracture, left side, sequela

    BillableChapter 19
  • S02.40ES

    Zygomatic fracture, right side, sequela

    BillableChapter 19
  • S02.40FS

    Zygomatic fracture, left side, sequela

    BillableChapter 19
  • S02.411S

    LeFort I fracture, sequela

    BillableChapter 19
  • S02.412S

    LeFort II fracture, sequela

    BillableChapter 19
  • S02.5XXA

    Fracture of tooth (traumatic), initial encounter for closed fracture

    BillableChapter 19
  • S02.5XXB

    Fracture of tooth (traumatic), initial encounter for open fracture

    BillableChapter 19
  • S02.5XXS

    Fracture of tooth (traumatic), sequela

    BillableChapter 19
  • S02.600S

    Fracture of unspecified part of body of mandible, unspecified side, sequela

    BillableChapter 19
  • S02.601S

    Fracture of unspecified part of body of right mandible, sequela

    BillableChapter 19
  • S02.602S

    Fracture of unspecified part of body of left mandible, sequela

    BillableChapter 19
  • S02.609S

    Fracture of mandible, unspecified, sequela

    BillableChapter 19
  • S02.610S

    Fracture of condylar process of mandible, unspecified side, sequela

    BillableChapter 19
  • S02.611S

    Fracture of condylar process of right mandible, sequela

    BillableChapter 19
  • S02.612S

    Fracture of condylar process of left mandible, sequela

    BillableChapter 19
  • S02.620S

    Fracture of subcondylar process of mandible, unspecified side, sequela

    BillableChapter 19
  • S02.621S

    Fracture of subcondylar process of right mandible, sequela

    BillableChapter 19
  • S02.622S

    Fracture of subcondylar process of left mandible, sequela

    BillableChapter 19
  • S02.630S

    Fracture of coronoid process of mandible, unspecified side, sequela

    BillableChapter 19
  • S02.631S

    Fracture of coronoid process of right mandible, sequela

    BillableChapter 19
  • S02.632S

    Fracture of coronoid process of left mandible, sequela

    BillableChapter 19
  • S02.640S

    Fracture of ramus of mandible, unspecified side, sequela

    BillableChapter 19
  • S02.641S

    Fracture of ramus of right mandible, sequela

    BillableChapter 19
  • S02.642S

    Fracture of ramus of left mandible, sequela

    BillableChapter 19
  • S02.650S

    Fracture of angle of mandible, unspecified side, sequela

    BillableChapter 19
  • S02.651S

    Fracture of angle of right mandible, sequela

    BillableChapter 19
  • S02.652S

    Fracture of angle of left mandible, sequela

    BillableChapter 19
  • S02.66XS

    Fracture of symphysis of mandible, sequela

    BillableChapter 19
  • S02.670S

    Fracture of alveolus of mandible, unspecified side, sequela

    BillableChapter 19
  • S02.671S

    Fracture of alveolus of right mandible, sequela

    BillableChapter 19
  • S02.672S

    Fracture of alveolus of left mandible, sequela

    BillableChapter 19
  • S02.92XS

    Unspecified fracture of facial bones, sequela

    BillableChapter 19
  • S03.00XS

    Dislocation of jaw, unspecified side, sequela

    BillableChapter 19
  • S03.01XS

    Dislocation of jaw, right side, sequela

    BillableChapter 19
  • S03.02XS

    Dislocation of jaw, left side, sequela

    BillableChapter 19
  • S03.2XXA

    Dislocation of tooth, initial encounter

    BillableChapter 19
  • S03.40XA

    Sprain of jaw, unspecified side, initial encounter

    BillableChapter 19
  • S03.41XA

    Sprain of jaw, right side, initial encounter

    BillableChapter 19
  • S03.42XA

    Sprain of jaw, left side, initial encounter

    BillableChapter 19
  • S03.43XA

    Sprain of jaw, bilateral, initial encounter

    BillableChapter 19
  • T17.998S

    Other foreign object in respiratory tract, part unspecified causing other injury, sequela

    BillableChapter 19