ICD-10-CM Code Z82.79

Family history of other congenital malformations, deformations and chromosomal abnormalities

Version 2020 Billable Code Unacceptable Principal Diagnosis POA Exempt

Valid for Submission

Z82.79 is a billable code used to specify a medical diagnosis of family history of other congenital malformations, deformations and chromosomal abnormalities. The code is valid for the year 2020 for the submission of HIPAA-covered transactions. The ICD-10-CM code Z82.79 might also be used to specify conditions or terms like down's child in family, family history of achondroplasia, family history of ambiguous genitalia, family history of anencephaly, family history of autosomal aneuploidy, family history of autosomal translocation, etc The code is exempt from present on admission (POA) reporting for inpatient admissions to general acute care hospitals.

The code Z82.79 describes a circumstance which influences the patient's health status but not a current illness or injury. The code is unacceptable as a principal diagnosis.

Short Description:Fam hx of congen malform, deformations and chromsoml abnlt
Long Description:Family history of other congenital malformations, deformations and chromosomal abnormalities

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 Z82.79 are found in the index:

Code Edits

The Medicare Code Editor (MCE) detects and reports errors in the coding of claims data. The following ICD-10 Code Edits are applicable to this code:

  • Unacceptable principal diagnosis - There are selected codes that describe a circumstance which influences an individual’s health status but not a current illness or injury, or codes that are not specific manifestations but may be due to an underlying cause. These codes are considered unacceptable as a principal diagnosis.


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

  • Down's child in family
  • Family history of achondroplasia
  • Family history of ambiguous genitalia
  • Family history of anencephaly
  • Family history of autosomal aneuploidy
  • Family history of autosomal translocation
  • Family history of cleft lip
  • Family history of cleft palate
  • Family history of cleft palate with cleft lip
  • Family history of complex congenital heart disease
  • Family history of congenital anomaly of cardiovascular system
  • Family history of congenital anomaly of ear
  • Family history of congenital diaphragmatic hernia
  • Family history of congenital Finnish nephrotic syndrome
  • Family history of congenital hip dysplasia
  • Family history of congenital hydrocephalus
  • Family history of congenital stenosis of aorta
  • Family history of connective tissue disorder
  • Family history of Cowden syndrome
  • Family history of craniosynostosis
  • Family history of cystic hygroma
  • Family history of disorder due to sex chromosome abnormality
  • Family history of disorder of skeletal and/or smooth muscle
  • Family history of dysmorphism
  • Family history of fragile X syndrome
  • Family history of holoprosencephaly
  • Family history of hypospadias
  • Family history of macrocephaly
  • Family history of Marfan syndrome
  • Family history of microcephaly
  • Family history of multiple congenital anomalies
  • Family history of nephrotic syndrome
  • Family history of neurofibromatosis
  • Family history of osteogenesis imperfecta
  • Family history of Prader-Willi syndrome
  • Family history of pulmonary infundibular stenosis
  • Family history of sex chromosome aneuploidy
  • Family history of sex chromosome translocation
  • Family history of short stature
  • Family history of single congenital anomaly
  • Family history of Spina bifida
  • Family history of stenosis of aortic valve
  • Family history of transposition of great vessels
  • Family history of trisomy 13
  • Family history of trisomy 18
  • Family history of trisomy 18 syndrome
  • Family history of Turner syndrome
  • Family history of velocardiofacial syndrome
  • Family history of vesicoureteral reflux
  • FH: Chromosomal anomaly
  • FH: Cong. orthopedic anomaly
  • FH: Congenital anomaly
  • FH: Congenital GIT anomaly
  • FH: Congenital GU anomaly
  • FH: Congenital heart disease
  • FH: Congenital RS anomaly
  • FH: Ear disorder
  • Maternal history of congenital dislocated hip

Present on Admission (POA)

Z82.79 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 Z82.79 to ICD-9

  • V19.5 - Fam hx-congen anomalies

Code Classification

  • Factors influencing health status and contact with health services (Z00–Z99)
    • Persons with potential health hazards related to family and personal history and certain conditions influencing health status (Z77-Z99)

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

Birth Defects

A birth defect is a problem that happens while a baby is developing in the mother's body. Most birth defects happen during the first 3 months of pregnancy. One out of every 33 babies in the United States is born with a birth defect.

A birth defect may affect how the body looks, works or both. Some birth defects like cleft lip or neural tube defects are structural problems that can be easy to see. To find others, like heart defects, doctors use special tests. Birth defects can range from mild to severe. Causes can include

  • Genetics
  • Exposures to medicines or chemicals. For example, alcohol abuse can cause fetal alcohol syndrome.
  • Infections during pregnancy
  • Certain medicines. Before you get pregnant, talk to your health care provider about any medicines you take.
  • Not getting enough of certain nutrients. For example, not getting enough folic acid before and during pregnancy is a key factor in causing neural tube defects.

For most birth defects, the cause is unknown.

Health care providers can diagnose certain birth defects during pregnancy, with prenatal tests. That's why it important to get regular prenatal care. Other birth defects may not be found until after the baby is born. Sometimes the defect is obvious right away. Other times, the health care provider may not discover it until later in life.

Babies with birth defects often need special care and treatments. The treatments may include surgery, medicines, assistive devices, and therapies.

Centers for Disease Control and Prevention

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Family History

Your family history includes health information about you and your close relatives. Families have many factors in common, including their genes, environment, and lifestyle. Looking at these factors can help you figure out whether you have a higher risk for certain health problems, such as heart disease, stroke, and cancer.

Having a family member with a disease raises your risk, but it does not mean that you will definitely get it. Knowing that you are at risk gives you a chance to reduce that risk by following a healthier lifestyle and getting tested as needed.

You can get started by talking to your relatives about their health. Draw a family tree and add the health information. Having copies of medical records and death certificates is also helpful.

Centers for Disease Control and Prevention

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Genetic Disorders

Genes are the building blocks of heredity. They are passed from parent to child. They hold DNA, the instructions for making proteins. Proteins do most of the work in cells. They move molecules from one place to another, build structures, break down toxins, and do many other maintenance jobs.

Sometimes there is a mutation, a change in a gene or genes. The mutation changes the gene's instructions for making a protein, so the protein does not work properly or is missing entirely. This can cause a medical condition called a genetic disorder.

You can inherit a gene mutation from one or both parents. A mutation can also happen during your lifetime.

There are three types of genetic disorders:

  • Single-gene disorders, where a mutation affects one gene. Sickle cell anemia is an example.
  • Chromosomal disorders, where chromosomes (or parts of chromosomes) are missing or changed. Chromosomes are the structures that hold our genes. Down syndrome is a chromosomal disorder.
  • Complex disorders, where there are mutations in two or more genes. Often your lifestyle and environment also play a role. Colon cancer is an example.

Genetic tests on blood and other tissue can identify genetic disorders.

NIH: National Library of Medicine

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