2027 ICD-10-CM Diagnosis Code Q82.9Congenital malformation of skin, unspecified
ICD-10-CM Codes›Q00-Q99›Q80-Q89›Q82
- Billable — Valid for Submission
- POA Exempt
- Chronic Condition
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 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 606 through 607, 795. The code is exempt from POA reporting. Coders also document this condition as café au lait spots. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Other specified and unspecified congenital anomalies.
Code Identity
Code Classification
Present on Admission (POA)Billing
Q82.9 is exempt from POA reporting on inpatient claims to general acute care hospitals. Review the other POA exempt codes in Other congenital malformations (Q80-Q89).
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Café au lait spots
- Cardio-facio-cutaneous syndrome
- 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
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to Q82.9: its own notes plus those printed at Q82 and Chapter 17. A note printed at a category, block or chapter applies to every code under it.
Excludes1
Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.
Excludes2
Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.
Notes
General instructions on how these codes are used.
- Codes from this chapter are not for use on maternal records
Source: CMS ICD-10-CM Tabular List. How to read instructional notes.
Referenced in Other NotesGuidance
Instructional notes printed at other codes that name Q82.9, its category, or a range that includes it.
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
Anomaly, anomalous (congenital) (unspecified type) Q89.9
ectodermal Q82.9
sebaceous gland Q82.9
skin (appendage) Q82.9
skin (congenital) Q82.9
Malformation (congenital) See Also: Anomaly;
skin Q82.9
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
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.
Code HistoryHistory
Questions About Q82.9Overview
What is the ICD-10 code for congenital malformation of skin, unspecified?
The ICD-10-CM code for congenital malformation of skin, unspecified is Q82.9 (sometimes written as Q829). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
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, 2026 through September 30, 2027.
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 795, 607, 606, with relative weights from 0.2022 to 1.5721 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. The code appears in the Other congenital malformations (Q80-Q89) range of the CMS exempt list.
Can Q82.9 be reported with E83.2?
Not as a rule. The Excludes1 note at Q82, which applies to Q82.9, lists "acrodermatitis enteropathica (E83.2)". An Excludes1 note means the excluded code is never reported together with this one; the only exception is when the two conditions are unrelated to each other (Official Guidelines, Section I.A.12.a).
