DRG 596
Medical DRGMajor Skin Disorders without MCC
What is MS-DRG 596?
MS-DRG 596 is a Medical Medicare Severity Diagnosis Related Group under Major Diagnostic Category 09 (MDC 09) without a significant Complication or Comorbidity. It maps to 115 ICD-10-CM diagnosis codes. For FY 2026 it carries a relative weight of 1.0825 with a geometric mean length of stay of 3.4 days and an arithmetic mean of 4.5 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.
| DRG | Title | Rel. Weight | GMLOS |
|---|---|---|---|
| 595 | Major Skin Disorders with MCC | 2.1207 | 5.4 days |
| 596 | Major Skin Disorders without MCCThis page | 1.0825 | 3.4 days |
Linked ICD-10-CM Diagnosis Mappings
- B02.9
Zoster without complications
BillableChapter 1 - C43.0
Malignant melanoma of lip
BillableChapter 2 - C43.20
Malignant melanoma of unspecified ear and external auricular canal
BillableChapter 2 - C43.21
Malignant melanoma of right ear and external auricular canal
BillableChapter 2 - C43.22
Malignant melanoma of left ear and external auricular canal
BillableChapter 2 - C43.30
Malignant melanoma of unspecified part of face
BillableChapter 2 - C43.31
Malignant melanoma of nose
BillableChapter 2 - C43.39
Malignant melanoma of other parts of face
BillableChapter 2 - C43.4
Malignant melanoma of scalp and neck
BillableChapter 2 - C43.51
Malignant melanoma of anal skin
BillableChapter 2 - C43.52
Malignant melanoma of skin of breast
BillableChapter 2 - C43.59
Malignant melanoma of other part of trunk
BillableChapter 2 - C43.60
Malignant melanoma of unspecified upper limb, including shoulder
BillableChapter 2 - C43.61
Malignant melanoma of right upper limb, including shoulder
BillableChapter 2 - C43.62
Malignant melanoma of left upper limb, including shoulder
BillableChapter 2 - C43.70
Malignant melanoma of unspecified lower limb, including hip
BillableChapter 2 - C43.71
Malignant melanoma of right lower limb, including hip
BillableChapter 2 - C43.72
Malignant melanoma of left lower limb, including hip
BillableChapter 2 - C43.8
Malignant melanoma of overlapping sites of skin
BillableChapter 2 - C43.9
Malignant melanoma of skin, unspecified
BillableChapter 2 - C4A.0
Merkel cell carcinoma of lip
BillableChapter 2 - C4A.10
Merkel cell carcinoma of unspecified eyelid, including canthus
BillableChapter 2 - C4A.111
Merkel cell carcinoma of right upper eyelid, including canthus
BillableChapter 2 - C4A.112
Merkel cell carcinoma of right lower eyelid, including canthus
BillableChapter 2 - C4A.121
Merkel cell carcinoma of left upper eyelid, including canthus
BillableChapter 2 - C4A.122
Merkel cell carcinoma of left lower eyelid, including canthus
BillableChapter 2 - C4A.20
Merkel cell carcinoma of unspecified ear and external auricular canal
BillableChapter 2 - C4A.21
Merkel cell carcinoma of right ear and external auricular canal
BillableChapter 2 - C4A.22
Merkel cell carcinoma of left ear and external auricular canal
BillableChapter 2 - C4A.30
Merkel cell carcinoma of unspecified part of face
BillableChapter 2 - C4A.31
Merkel cell carcinoma of nose
BillableChapter 2 - C4A.39
Merkel cell carcinoma of other parts of face
BillableChapter 2 - C4A.4
Merkel cell carcinoma of scalp and neck
BillableChapter 2 - C4A.51
Merkel cell carcinoma of anal skin
BillableChapter 2 - C4A.52
Merkel cell carcinoma of skin of breast
BillableChapter 2 - C4A.59
Merkel cell carcinoma of other part of trunk
BillableChapter 2 - C4A.60
Merkel cell carcinoma of unspecified upper limb, including shoulder
BillableChapter 2 - C4A.61
Merkel cell carcinoma of right upper limb, including shoulder
BillableChapter 2 - C4A.62
Merkel cell carcinoma of left upper limb, including shoulder
BillableChapter 2 - C4A.70
Merkel cell carcinoma of unspecified lower limb, including hip
BillableChapter 2 - C4A.71
Merkel cell carcinoma of right lower limb, including hip
BillableChapter 2 - C4A.72
Merkel cell carcinoma of left lower limb, including hip
BillableChapter 2 - C4A.8
Merkel cell carcinoma of overlapping sites
BillableChapter 2 - C4A.9
Merkel cell carcinoma, unspecified
BillableChapter 2 - D03.0
Melanoma in situ of lip
BillableChapter 2 - D03.20
Melanoma in situ of unspecified ear and external auricular canal
BillableChapter 2 - D03.21
Melanoma in situ of right ear and external auricular canal
BillableChapter 2 - D03.22
Melanoma in situ of left ear and external auricular canal
BillableChapter 2 - D03.30
Melanoma in situ of unspecified part of face
BillableChapter 2 - D03.39
Melanoma in situ of other parts of face
BillableChapter 2 - D03.4
Melanoma in situ of scalp and neck
BillableChapter 2 - D03.51
Melanoma in situ of anal skin
BillableChapter 2 - D03.52
Melanoma in situ of breast (skin) (soft tissue)
BillableChapter 2 - D03.59
Melanoma in situ of other part of trunk
BillableChapter 2 - D03.60
Melanoma in situ of unspecified upper limb, including shoulder
BillableChapter 2 - D03.61
Melanoma in situ of right upper limb, including shoulder
BillableChapter 2 - D03.62
Melanoma in situ of left upper limb, including shoulder
BillableChapter 2 - D03.70
Melanoma in situ of unspecified lower limb, including hip
BillableChapter 2 - D03.71
Melanoma in situ of right lower limb, including hip
BillableChapter 2 - D03.72
Melanoma in situ of left lower limb, including hip
BillableChapter 2 - D03.8
Melanoma in situ of other sites
BillableChapter 2 - D03.9
Melanoma in situ, unspecified
BillableChapter 2 - L00
Staphylococcal scalded skin syndrome
BillableChapter 12 - L10.0
Pemphigus vulgaris
BillableChapter 12 - L10.1
Pemphigus vegetans
BillableChapter 12 - L10.2
Pemphigus foliaceous
BillableChapter 12 - L10.3
Brazilian pemphigus [fogo selvagem]
BillableChapter 12 - L10.4
Pemphigus erythematosus
BillableChapter 12 - L10.5
Drug-induced pemphigus
BillableChapter 12 - L10.81
Paraneoplastic pemphigus
BillableChapter 12 - L10.89
Other pemphigus
BillableChapter 12 - L10.9
Pemphigus, unspecified
BillableChapter 12 - L12.0
Bullous pemphigoid
BillableChapter 12 - L12.1
Cicatricial pemphigoid
BillableChapter 12 - L12.30
Acquired epidermolysis bullosa, unspecified
BillableChapter 12 - L12.31
Epidermolysis bullosa due to drug
BillableChapter 12 - L12.35
Other acquired epidermolysis bullosa
BillableChapter 12 - L12.8
Other pemphigoid
BillableChapter 12 - L12.9
Pemphigoid, unspecified
BillableChapter 12 - L13.8
Other specified bullous disorders
BillableChapter 12 - L13.9
Bullous disorder, unspecified
BillableChapter 12 - L14
Bullous disorders in diseases classified elsewhere
BillableChapter 12 - L40.0
Psoriasis vulgaris
BillableChapter 12 - L40.2
Acrodermatitis continua
BillableChapter 12 - L40.3
Pustulosis palmaris et plantaris
BillableChapter 12 - L40.4
Guttate psoriasis
BillableChapter 12 - L40.8
Other psoriasis
BillableChapter 12 - L40.9
Psoriasis, unspecified
BillableChapter 12 - L41.0
Pityriasis lichenoides et varioliformis acuta
BillableChapter 12 - L41.1
Pityriasis lichenoides chronica
BillableChapter 12 - L41.3
Small plaque parapsoriasis
BillableChapter 12 - L41.4
Large plaque parapsoriasis
BillableChapter 12 - L41.5
Retiform parapsoriasis
BillableChapter 12 - L41.8
Other parapsoriasis
BillableChapter 12 - L41.9
Parapsoriasis, unspecified
BillableChapter 12 - L51.0
Nonbullous erythema multiforme
BillableChapter 12 - L51.1
Stevens-Johnson syndrome
BillableChapter 12 - L51.2
Toxic epidermal necrolysis [Lyell]
BillableChapter 12 - L51.3
Stevens-Johnson syndrome-toxic epidermal necrolysis overlap syndrome
BillableChapter 12 - L51.8
Other erythema multiforme
BillableChapter 12 - L51.9
Erythema multiforme, unspecified
BillableChapter 12 - L52
Erythema nodosum
BillableChapter 12 - L53.0
Toxic erythema
BillableChapter 12 - L53.1
Erythema annulare centrifugum
BillableChapter 12 - L53.2
Erythema marginatum
BillableChapter 12 - L53.3
Other chronic figurate erythema
BillableChapter 12 - L93.0
Discoid lupus erythematosus
BillableChapter 12 - L93.1
Subacute cutaneous lupus erythematosus
BillableChapter 12 - L93.2
Other local lupus erythematosus
BillableChapter 12 - L94.5
Poikiloderma vasculare atrophicans
BillableChapter 12 - Q81.0
Epidermolysis bullosa simplex
BillableChapter 17 - Q81.1
Epidermolysis bullosa letalis
BillableChapter 17 - Q81.2
Epidermolysis bullosa dystrophica
BillableChapter 17 - Q81.8
Other epidermolysis bullosa
BillableChapter 17 - Q81.9
Epidermolysis bullosa, unspecified
BillableChapter 17