2024 ICD-10-CM Diagnosis Code Q79.0

Approximate Synonyms

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

• Asplenia
• Combined malformation of central nervous system and skeletal muscle
• Congenital absence of spleen
• Congenital diaphragmatic hernia
• Congenital diaphragmatic hernia
• Congenital diaphragmatic hernia
• Congenital diaphragmatic hernia
• Congenital hernia of foramen of Morgagni
• Congenital omphalocele
• Congenital omphalocele, diaphragmatic hernia, cardiovascular anomalies, radial ray defect syndrome
• Congenital posterolateral diaphragmatic hernia
• Congenital short bowel syndrome
• Congenital umbilical hernia
• Diaphragmatic hernia, short bowel, asplenia syndrome
• Donnai-Barrow syndrome
• Fryns syndrome
• Hydranencephaly
• Lethal hydranencephaly, diaphragmatic hernia syndrome
• Microphthalmos due to Fryns syndrome
• PAGOD syndrome
• Short bowel syndrome

Clinical Information

• Short Bowel Syndrome

  a malabsorption syndrome resulting from extensive operative resection of the small intestine, the absorptive region of the gastrointestinal tract.

• Hydranencephaly

  a congenital condition where the greater portions of the cerebral hemispheres and corpus striatum are replaced by csf and glial tissue. the meninges and the skull are well formed, which is consistent with earlier normal embryogenesis of the telencephalon. bilateral occlusions of the internal carotid arteries in utero is a potential mechanism. clinical features include intact brainstem reflexes without evidence of higher cortical activity. (menkes, textbook of child neurology, 5th ed, p307)

• Congenital Diaphragmatic Hernia

  diaphragmatic hernia that is present at birth.

• Short Bowel Syndrome

  malabsorption that results from the removal of a large segment of the small intestine or, less frequently, from the complete dysfunction of a large portion of the small intestine. signs and symptoms include diarrhea, steatorrhea, and weight loss.

• Hydranencephaly

  a rare congenital brain disorder in which the cerebral hemispheres are absent and replaced by sacs that contain cerebrospinal fluid. signs and symptoms include irritability, increased muscle tone, seizures, and hydrocephalus. the prognosis is poor.

• Fryns Syndrome

  a rare syndrome inherited in an autosomal recessive pattern. it is characterized by the presence of diaphragmatic defects, distinctive facial features (hypertelorism, low-set ears, flat nasal bridge, and micrognathia), distal digital hypoplasia, lung hypoplasia, and brain, gastrointestinal, and cardiovascular malformations.

Q79.0 is grouped with Diagnostic Related Groups - MS-DRG Mapping

Diagnostic Related Groups (DRGs) are a classification system used to group together diagnosis codes for the purpose of reimbursement and healthcare management. DRGs are used to standardize the way hospitals and other providers are paid for inpatient services. In this system patients are grouped together based on their principal diagnosis in areas referred to as Major Diagnostic Categories (MDC). Once a patient is assigned a particular diagnostic category, providers receive a predetermined payment rate for the services rendered. This reimbursement rate is often fixed and is meant to cover the cost of care for that patient. Reimbursement is also affected by the relative weight of a diagnostic related group based on the severity of a patient's illness and the associated cost of care during hospitalization.

Diagnostic related groups encourage healthcare providers to focus on quality and efficiency in patient care while managing costs effectively. The diagnosis code is present in the following groups for version MS-DRG V41.0 applicable from 10/01/2023 through 09/30/2024.

The relative weight of a diagnostic related group determines the reimbursement rate based on the severity of a patient's illness and the associated cost of care during hospitalization.

Present on Admission (POA)

Q79.0 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

Convert Q79.0 to ICD-9-CM

• ICD-9-CM Code: 756.6 - Anomalies of diaphragm
  Approximate Flag - The approximate mapping means there is not an exact match between the ICD-10 and ICD-9 codes and the mapped code is not a precise representation of the original code.

Patient Education

Congenital diaphragmatic hernia

Congenital diaphragmatic hernia is a defect in the diaphragm. The diaphragm, which is composed of muscle and other fibrous tissue, separates the organs in the abdomen from those in the chest. Abnormal development of the diaphragm before birth leads to defects ranging from a thinned area in the diaphragm to its complete absence. An absent or partially formed diaphragm results in an abnormal opening (hernia) that allows the stomach and intestines to move into the chest cavity and crowd the heart and lungs. This crowding can lead to underdevelopment of the lungs (pulmonary hypoplasia), potentially resulting in life-threatening breathing difficulties that are apparent from birth.

In 5 to 10 percent of affected individuals, signs and symptoms of congenital diaphragmatic hernia appear later in life and may include breathing problems or abdominal pain from protrusion of the intestine into the chest cavity. In about 1 percent of cases, congenital diaphragmatic hernia has no symptoms; it may be detected incidentally when medical imaging is done for other reasons.

Congenital diaphragmatic hernias are often classified by their position. A Bochdalek hernia is a defect in the side or back of the diaphragm. Between 80 and 90 percent of congenital diaphragmatic hernias are of this type. A Morgnani hernia is a defect involving the front part of the diaphragm. This type of congenital diaphragmatic hernia, which accounts for approximately 2 percent of cases, is less likely to cause severe symptoms at birth. Other types of congenital diaphragmatic hernia, such as those affecting the central region of the diaphragm, or those in which the diaphragm muscle is absent with only a thin membrane in its place, are rare.

Code History

• FY 2024 - No Change, effective from 10/1/2023 through 9/30/2024
• FY 2023 - No Change, effective from 10/1/2022 through 9/30/2023
• FY 2022 - No Change, effective from 10/1/2021 through 9/30/2022
• FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
• FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
• FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
• FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
• FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
• FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016. This was the first year ICD-10-CM was implemented into the HIPAA code set.