AHA Coding Clinic® for ICD-10-CM and ICD-10-PCS - 2017 Issue 4; New/Revised ICD-10-CM Diagnosis Codes
Gestational Alloimmune Liver Disease
Code P78.84, Gestational alloimmune liver disease, has been created to describe gestational alloimmune liver disease (GALD). Previously, the ICD-10-CM did not have a specific code classification for GALD. GALD is a unique condition, which can present as severe hepatic injury/failure of the fetus and newborn. The onset is early, during fetal development. According to studies, sensitization of some women to a fetal liver antigen causes the development of specific antifetal liver IgG antibodies. When crossed over to the fetal circulation, these antibodies bind to the antigen and activate the terminal complement cascade resulting in hepatocyte injury. Fetal liver...
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Article Overview
This article covers the ICD-10-CM update that added a specific diagnosis code for gestational alloimmune liver disease (GALD), along with a brief clinical overview of the condition and its relationship to neonatal hemochromatosis terminology. It is relevant to coding professionals, CDI teams, and clinicians who work with maternal-fetal, neonatal, and liver-related diagnoses. The article provides context on why the code was introduced and how related terminology is represented in ICD-10-CM.
Why This Topic Matters
GALD is a rare but serious diagnosis that previously lacked a dedicated ICD-10-CM classification. Understanding the coding update helps support more precise diagnosis reporting and better alignment between clinical terminology and coded data.
What You Will Learn
- What gestational alloimmune liver disease is in broad clinical terms
- Why an ICD-10-CM code was added for this diagnosis
- How the condition relates to neonatal hemochromatosis terminology
- Which patient populations are involved in the condition’s presentation
Who Should Read This
- Medical coders
- Clinical documentation improvement specialists
- Healthcare providers
- Neonatal and maternal-fetal care teams
- Health information management professionals
Codes Discussed
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