ICD10 code of Biliary Atresia and ICD9 code

Biliary atresia is classified under the ICD-10 code Q44.2 (congenital obstruction of bile ducts) and the historical ICD-9 code 751.61 (biliary atresia). These diagnostic codes are essential for medical billing, insurance authorization, and tracking the clinical progression of Biliary Atresia in pediatric healthcare systems globally.

What is the clinical significance of Biliary Atresia?

Biliary Atresia is a rare, life-threatening pediatric liver disease characterized by the progressive fibro-inflammatory obliteration of the extrahepatic bile ducts. This obstruction prevents bile from draining from the liver into the gallbladder and intestines, leading to cholestasis, liver fibrosis, and eventually cirrhosis if left untreated. Among our community at DiseaseMaps.org, 342 people with Biliary Atresia have shared their experiences, highlighting the urgent need for early diagnosis, as the condition typically presents within the first few weeks of life in otherwise healthy-appearing infants.

How is Biliary Atresia diagnosed and coded?

The diagnostic process for Biliary Atresia is rapid and involves a combination of liver function tests, abdominal ultrasound, and a HIDA scan. The definitive diagnosis is confirmed through an intraoperative cholangiogram and liver biopsy. When a physician confirms the diagnosis, they utilize the following codes for documentation:

• ICD-10-CM Code: Q44.2 (Congenital obstruction of bile ducts, which is the specific code for Biliary Atresia).


• ICD-9-CM Code: 751.61 (The legacy code used prior to the transition to ICD-10 in 2015).


• Associated Coding: Clinicians may also use supplementary codes for associated complications, such as K74.60 (unspecified cirrhosis of the liver) or P59.9 (neonatal jaundice, unspecified) during the initial workup phase.

Is Biliary Atresia considered an inherited condition?

Current medical research suggests that Biliary Atresia is not typically inherited in a simple Mendelian pattern. While it is a congenital condition, it is generally considered sporadic. The exact etiology remains a subject of intense investigation; current theories point toward a combination of genetic susceptibility and environmental factors, such as perinatal viral infections or autoimmune dysregulation, that trigger the inflammatory process in the bile ducts shortly after birth.

What is the standard treatment approach?

The primary surgical intervention for Biliary Atresia is the Kasai hepatoportoenterostomy (KPE), ideally performed before the infant reaches 60 days of age. The success of this procedure—measured by the restoration of bile flow—is highly dependent on the timing of the surgery. If the KPE fails to provide adequate drainage or if liver damage has already progressed to end-stage liver disease, liver transplantation becomes the necessary life-saving intervention for children with Biliary Atresia.

Next steps

• Consult a pediatric hepatologist or a pediatric surgeon specializing in liver transplantation for a comprehensive care plan.


• Ensure your medical records clearly reflect the ICD-10 code Q44.2 to facilitate appropriate insurance coverage for specialized care.


• Connect with the 342 members of the DiseaseMaps.org community to share experiences and find emotional support from families navigating similar pediatric health journeys.


• Monitor for clinical red flags, such as acholic (pale) stools or persistent jaundice beyond two weeks of age, and report these to your medical team immediately.

Medical disclaimer: This information is for educational purposes only and does not constitute medical advice, diagnosis, or treatment; always seek the advice of a qualified healthcare professional regarding any medical condition.

References

• NIH Genetic and Rare Diseases Information Center (GARD): Biliary Atresia.


• Orphanet: Rare Disease Database, ORPHA:116.


• OMIM (Online Mendelian Inheritance in Man): Biliary Atresia (Entry #210500).


• American Liver Foundation: Pediatric Biliary Atresia Resources.