ICD-10-CM Code Q84.0

Congenital alopecia

Version 2020 Billable Code POA Exempt

Valid for Submission

Q84.0 is a billable code used to specify a medical diagnosis of congenital alopecia. The code is valid for the year 2020 for the submission of HIPAA-covered transactions. The ICD-10-CM code Q84.0 might also be used to specify conditions or terms like acroosteolysis, alopecia and intellectual disability with hypergonadotropic hypogonadism syndrome, alopecia universalis, alopecia, contracture, dwarfism, intellectual disability syndrome, alopecia, nail dystrophy, ophthalmic complications, thyroid dysfunction, hypohidrosis, ephelides, enteropathy and respiratory tract infections, alopecia, progressive neurological defect, endocrinopathy syndrome, etc The code is exempt from present on admission (POA) reporting for inpatient admissions to general acute care hospitals.

Short Description:Congenital alopecia
Long Description:Congenital alopecia

Tabular List of Diseases and Injuries

The Tabular List of Diseases and Injuries is a list of ICD-10 codes, organized "head to toe" into chapters and sections with guidance for inclusions, exclusions, descriptions and more. The following references are applicable to the code Q84.0:

Inclusion Terms

Inclusion Terms
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
  • Congenital atrichosis

Index to Diseases and Injuries

The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10 code(s). The following references for the code Q84.0 are found in the index:


The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

  • Acroosteolysis
  • Alopecia and intellectual disability with hypergonadotropic hypogonadism syndrome
  • Alopecia universalis
  • Alopecia, contracture, dwarfism, intellectual disability syndrome
  • Alopecia, nail dystrophy, ophthalmic complications, thyroid dysfunction, hypohidrosis, ephelides, enteropathy and respiratory tract infections
  • Alopecia, progressive neurological defect, endocrinopathy syndrome
  • Alopecia, psychomotor epilepsy, periodontal pyorrhea, intellectual disability syndrome
  • Atrichia congenita
  • Atrichia with papular lesions
  • Autosomal dominant palmoplantar keratoderma and congenital alopecia
  • Autosomal recessive palmoplantar keratoderma and congenital alopecia syndrome
  • Choroidal atrophy
  • Choroidal atrophy and alopecia syndrome
  • Congenital alopecia
  • Congenital alopecia with keratin cysts
  • Congenital anomaly of choroid
  • Congenital generalized alopecia
  • Congenital hypotrichia
  • Congenital hypotrichia
  • Congenital hypotrichia
  • Congenital hypotrichia
  • Congenital hypotrichia
  • Congenital ichthyosis with hypotrichosis syndrome
  • Congenital localized alopecia
  • Congenital retrognathism
  • Cutaneous syndrome with ichthyosis
  • Cutis laxa, autosomal recessive
  • Dwarfism, alopecia, pseudoanodontia, cutis laxa
  • Ectodermal dysplasia with hair-nail defect
  • Ectodermal dysplasia with sweating defect
  • Frontonasal dysplasia sequence
  • Frontonasal dysplasia with alopecia and genital anomaly syndrome
  • GAPO syndrome
  • Hereditary acroosteolysis
  • Hypogonadism, diabetes mellitus, alopecia, mental retardation and electrocardiographic abnormalities
  • Hypoplasia of thumb
  • Hypotrichosis and intellectual disability syndrome Lopes type
  • Hypotrichosis with juvenile macular degeneration syndrome
  • Hypotrichosis with keratosis pilaris and lentiginosis
  • Hypotrichosis, lymphedema, telangiectasia, renal defect syndrome
  • Hypotrichosis, osteolysis, periodontitis, palmoplantar keratoderma syndrome
  • Ichthyosis follicularis with alopecia and photophobia
  • Ichthyosis, alopecia, eclabion, ectropion, intellectual disability syndrome
  • Lamellar ichthyosis
  • MACS syndrome
  • Marie Unna syndrome
  • Neonatal sclerosing cholangitis, ichthyosis, hypotrichosis syndrome
  • Odonto onycho dysplasia with alopecia syndrome
  • Odonto-onychial dysplasia with alopecia
  • Periodontitis co-occurrent with genetic disorder
  • Poikiloderma, alopecia, retrognathism, cleft palate syndrome
  • Sclerosing cholangitis
  • Severe T-cell immunodeficiency, congenital alopecia, nail dystrophy syndrome
  • Short stature, onychodysplasia, facial dysmorphism, hypotrichosis syndrome
  • Spondyloepimetaphyseal dysplasia, hypotrichosis syndrome
  • Sutural alopecia
  • Taurodontia with absent teeth and sparse hair syndrome
  • Thumb deformity, alopecia, pigmentation anomaly syndrome
  • Total congenital alopecia
  • Total congenital alopecia
  • Triangular alopecia
  • Vertical alopecia

Diagnostic Related Groups

The ICD-10 code Q84.0 is grouped in the following groups for version MS-DRG V37.0 What are Diagnostic Related Groups?
The Diagnostic Related Groups (DRGs) are a patient classification scheme which provides a means of relating the type of patients a hospital treats. The DRGs divides all possible principal diagnoses into mutually exclusive principal diagnosis areas referred to as Major Diagnostic Categories (MDC).
applicable from 10/01/2019 through 09/30/2020.


Present on Admission (POA)

Q84.0 is exempt from POA reporting - The Present on Admission (POA) indicator is used for diagnosis codes included in claims involving inpatient admissions to general acute care hospitals. POA indicators must be reported to CMS on each claim to facilitate the grouping of diagnoses codes into the proper Diagnostic Related Groups (DRG). CMS publishes a listing of specific diagnosis codes that are exempt from the POA reporting requirement. Review other POA exempt codes here .

CMS POA Indicator Options and Definitions
POA Indicator CodePOA Reason for CodeCMS will pay the CC/MCC DRG?
YDiagnosis was present at time of inpatient admission.YES
NDiagnosis was not present at time of inpatient admission.NO
UDocumentation insufficient to determine if the condition was present at the time of inpatient admission.NO
WClinically undetermined - unable to clinically determine whether the condition was present at the time of inpatient admission.YES
1Unreported/Not used - Exempt from POA reporting. NO

Convert Q84.0 to ICD-9

  • 757.4 - Hair anomalies NEC (Approximate Flag)

Code Classification

  • Congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
    • Other congenital malformations (Q80-Q89)
      • Other congenital malformations of integument (Q84)

Code History

  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016
    (First year ICD-10-CM implemented into the HIPAA code set)
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020

Information for Patients

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.

Hair helps keep you warm. It also protects your eyes, ears and nose from small particles in the air. Common problem with the hair and scalp include hair loss, infections, and flaking.

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