2026 ICD-10-CM Diagnosis Code P83.0Sclerema neonatorum
ICD-10-CM Codes›P00–P96›P80-P83›P83
- Billable — Valid for Submission
- CC — Complication or Comorbidity
- Not Chronic
P83.0 is a billable ICD-10-CM diagnosis code for sclerema neonatorum. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 794. As a secondary diagnosis, it counts as a complication or comorbidity (CC) and moves an inpatient stay to a higher severity level within its MS-DRG family. It does not count, however, when the principal diagnosis is one of 3 closely related codes. Coders also document this condition as fat necrosis of subcutaneous tissue. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Other specified and unspecified perinatal conditions.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Fat necrosis of subcutaneous tissue
- Necrosis of subcutaneous tissue
- Neonatal disorder of subcutaneous fat
- Scleredema
- Sclerema
- Sclerema neonatorum
- Subcutaneous fat necrosis of newborn
- Thickening of skin
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
Disease, diseased See Also: Syndrome;
Necrosis, necrotic (ischemic) See Also: Gangrene;
fat, fatty (generalized) See Also: Disorder, soft tissue, specified type NEC;
newborn P83.0
Underwood's disease P83.0
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Clinical InformationClinical
Sclerema Neonatorum
a severe, sometimes fatal, disorder of adipose tissue occurring chiefly in preterm or debilitated infants suffering from an underlying illness and manifested by a diffuse, nonpitting induration of the affected tissue. the skin becomes cold, yellowish, mottled, and inflexible.Sclerema Neonatorum
a diffuse hardening of skin and subcutaneous adipose tissue, associated with minimal inflammation without fat necrosis, that typically affects critically ill preterm neonates during the first week of life.
Patient EducationClinical
Skin Conditions
Your skin is your body's largest organ. It covers the entire outside of your body. There are many ways that your skin protects your body and helps keep you healthy. For example, it:
The full article covers:
- What does your skin do?
- What problems and conditions can affect your skin?
- How can I keep my skin healthy?
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert P83.0 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About P83.0Overview
What is the ICD-10 code for sclerema neonatorum?
The ICD-10-CM code for sclerema neonatorum is P83.0 (sometimes written as P830). It is billable on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
Is P83.0 (Other conditions of integument specific to newborn) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report sclerema neonatorum on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What MS-DRG does P83.0 group to?
When sclerema neonatorum is the principal diagnosis on an inpatient stay, it groups to MS-DRG 794 (neonate with Other Significant Problems), which carries a relative weight of 1.4759. Higher weights mean higher Medicare reimbursement.
Is P83.0 a CC or MCC?
CMS lists P83.0 as a CC (complication or comorbidity) for FY 2026. Reported as a secondary diagnosis, it moves the inpatient stay to a higher-weighted DRG within its severity family. It does not count when the principal diagnosis is one of the 3 closely related codes in its exclusion list.
What is the ICD-9 equivalent of P83.0?
Under the General Equivalence Mappings, sclerema neonatorum converts to ICD-9-CM 778.1 (sclerema neonatorum). The mapping is a direct match.
