2026 ICD-10-CM Diagnosis Code Q82.9Congenital malformation of skin, unspecified

ICD-10-CM Codes›Q00-Q99›Q80-Q89›Q82

ICD-10-CM Q82.9
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

Q82.9 is a billable ICD-10-CM diagnosis code for congenital malformation of skin, unspecified. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 606 through 607. The code is exempt from POA reporting. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Other specified and unspecified congenital anomalies.

Code Identity

ICD-10-CM Code
Q82.9
Billable Status
Yes — Valid for Submission
Code Describes
Congenital malformation of skin, unspecified
Short Description
Congenital malformation of skin, unspecified
Same as the full description in the CMS dataset.
Parent Code
Q82
Other congenital malformations of skin

Code Classification

ChapterQ00-Q99Congenital malformations, deformations and chromosomal abnormalities
SectionQ80-Q89Other congenital malformations
CategoryQ82Other congenital malformations of skin
This CodeQ82.9Congenital malformation of skin, unspecified

Present on Admission (POA)Billing

Q82.9 is exempt from POA reporting on inpatient claims to general acute care hospitals. Review other POA exempt codes.

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Body height below reference range
  • Café au lait spots
  • Cardio-facio-cutaneous syndrome
  • Congenital absence of breast
  • Congenital absence of nipple
  • Congenital anomaly of skin
  • Congenital muscular dystrophy, respiratory failure, skin abnormalities, joint hyperlaxity syndrome
  • Craniofacial dysplasia, short stature, ectodermal anomalies, intellectual disability syndrome
  • Facial dysmorphism, anorexia, cachexia, eye and skin anomalies syndrome
  • Global developmental delay, osteopenia, ectodermal defect syndrome
  • Intellectual disability, obesity, prognathism, eye and skin anomalies syndrome
  • Scalp, ear, nipple syndrome

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

External Cause of Injuries IndexGuidance

References for this code in the External Cause of Injuries Index.

    • Anomaly, anomalous(congenital) (unspecified type)
      • ectodermal
    • Anomaly, anomalous(congenital) (unspecified type)
      • sebaceous gland
    • Anomaly, anomalous(congenital) (unspecified type)
      • skin (appendage)
    • Defect, defective
      • ectodermal, congenital
    • Deformity
      • skin (congenital)
    • Malformation(congenital)
      • skin

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR MAL010
Other specified and unspecified congenital anomalies
Default principal diagnosis: inpatient Yes · outpatient Yes

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 Q82.9 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
757.39 Skin anomaly NEC
Approximate The match is approximate rather than exact.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About Q82.9Overview

Is Q82.9 (Other congenital malformations of skin) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report congenital malformation of skin, unspecified on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does Q82.9 group to?

When congenital malformation of skin, unspecified is the principal diagnosis on an inpatient stay, it groups to MS-DRG 606, 607, with relative weights from 0.9064 to 1.5132 depending on complications. Higher weights mean higher Medicare reimbursement.

Is Q82.9 exempt from POA reporting?

Yes. CMS lists this code among those exempt from present on admission reporting, so hospitals do not assign a POA indicator for congenital malformation of skin, unspecified on inpatient claims.

What is the ICD-9 equivalent of Q82.9?

Under the General Equivalence Mappings, congenital malformation of skin, unspecified converts to ICD-9-CM 757.39 (skin anomaly NEC). The mapping is approximate, so confirm the match fits the documentation.

Footnotes

[1] Chronic - a chronic condition code indicates a condition lasting 12 months or longer and its effect on the patient based on one or both of the following criteria:

  • The condition results in the need for ongoing intervention with medical products,treatment, services, and special equipment
  • The condition places limitations on self-care, independent living, and social interactions.