2027 ICD-10-CM Diagnosis Code Q84.2Other congenital malformations of hair
ICD-10-CM Codes›Q00-Q99›Q80-Q89›Q84
- Billable — Valid for Submission
- POA Exempt
- Not Chronic
Q84.2 is a billable ICD-10-CM diagnosis code for other congenital malformations of hair. 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. 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
Code Classification
Present on Admission (POA)Billing
Q84.2 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.
- Amaurosis hypertrichosis syndrome
- Autosomal dominant preaxial polydactyly, upper back hypertrichosis syndrome
- BIDS brittle hair-impaired intellect-decreased fertility-short stature syndrome
- Congenital anomaly of hair
- Congenital cataract with hypertrichosis and intellectual disability syndrome
- Congenital generalized hypertrichosis
- Congenital hypertrichosis
- Congenital hypertrichosis lanuginosa
- Congenital leukonychia
- Curly hair, acral keratoderma, caries syndrome
- Dermotrichic syndrome
- Facial dysmorphism, hypertrichosis, epilepsy, intellectual disability/developmental delay, gingival overgrowth syndrome
- Genetic defect of hair shaft
- Genetic syndrome with hypermelanosis
- Hair defect with photosensitivity and intellectual disability syndrome
- Hair discoloration
- Hypertrichosis cubiti
- Hypertrichosis lanuginosa
- Hypertrichosis with congenital macrogingivae
- Intellectual disability, polydactyly, uncombable hair syndrome
- Isolated anterior cervical hypertrichosis
- Keratosis pilaris
- Keratosis pilaris atrophicans
- Lanugo
- Leukonychia totalis
- Leukonychia totalis, acanthosis-nigricans-like lesions, abnormal hair syndrome
- Loose anagen hair syndrome
- Manitoba oculotrichoanal syndrome
- Multiple malformation syndrome, moderate short stature, facial
- Non-androgenic hypertrichosis with genetic disease
- Noonan syndrome-like disorder with loose anagen hair
- Oculotrichodysplasia
- Oliver McFarlane syndrome
- Onycho-tricho-dysplasia neutropenia syndrome
- Osteopathia striata
- Osteopathia striata, pigmentary dermopathy, white forelock syndrome
- Osteopenia, intellectual disability, sparse hair syndrome
- Persistent lanugo
- Photosensitivity with ichthyosis, brittle hair, impaired intelligence, decreased fertility and short stature syndrome
- Poliosis
- Sabinas brittle hair syndrome
- Taenzer's hair
- Trichodysplasia xeroderma syndrome
- Trichohepatoenteric syndrome
- Trichothiodystrophy
- Ulerythema ophryogenes
- Uncombable hair syndrome
- White forelock
- White forelock with malformations syndrome
- Wiedemann Steiner syndrome
- X-linked congenital generalized hypertrichosis
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to Q84.2: its own notes plus those printed at Chapter 17. A note printed at a category, block or chapter applies to every code under it.
Applicable To
Conditions this code is used for: synonyms of the title or, for "other specified" codes, the conditions assigned to it. The list is not exhaustive.
- Congenital hypertrichosis
- Congenital malformation of hair NOS
- Persistent lanugo
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 Q84.2, its category, or a range that includes it.
Excludes1 4
These codes carry an Excludes1 note naming Q84.2: they are not reported together with it, unless the two conditions are unrelated.
- L68 Hypertrichosiscongenital hypertrichosis (Q84.2)
- L68 Hypertrichosispersistent lanugo (Q84.2)
- Block L60-L75 Disorders of skin appendagescongenital malformations of integument (Q84.-) names Q84.-, which includes this code
- P83 Other conditions of integument specific to newborn
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
congenital Q84.2
lanuginosa Q84.2
hair Q84.2
Malformation (congenital) See Also: Anomaly;
hair Q84.2
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Patient EducationClinical
Hair Problems
The average person has 5 million hairs. Hair grows all over your body except on your lips, palms, and the soles of your feet. It takes about a month for healthy hair to grow half an inch. Most hairs grow for up to six years and then fall out. New hairs grow in their place.
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert Q84.2 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About Q84.2Overview
What is the ICD-10 code for other congenital malformations of hair?
The ICD-10-CM code for other congenital malformations of hair is Q84.2 (sometimes written as Q842). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
Is Q84.2 (Other congenital malformations of integument) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report other congenital malformations of hair on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
What MS-DRG does Q84.2 group to?
When other congenital malformations of hair is the principal diagnosis on an inpatient stay, it groups to MS-DRG 607, 606, with relative weights from 0.8772 to 1.5721 depending on complications. Higher weights mean higher Medicare reimbursement.
Is Q84.2 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 other congenital malformations of hair on inpatient claims. The code appears in the Other congenital malformations (Q80-Q89) range of the CMS exempt list.
What is the ICD-9 equivalent of Q84.2?
Under the General Equivalence Mappings, other congenital malformations of hair converts to ICD-9-CM 757.4 (hair anomalies NEC). The mapping is approximate, so confirm the match fits the documentation.
