2026 ICD-10-CM Diagnosis Code P78.84Gestational alloimmune liver disease
ICD-10-CM Codes›P00–P96›P76-P78›P78
- Billable — Valid for Submission
- POA Exempt
- Not Chronic
P78.84 is a billable ICD-10-CM diagnosis code for gestational alloimmune liver disease. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026). The code is exempt from POA reporting. Coders also document this condition as hypoparathyroidism due to hemochromatosis. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Neonatal digestive and feeding disorders.
Code Identity
Code Classification
Present on Admission (POA)Billing
P78.84 is exempt from POA reporting on inpatient claims to general acute care hospitals. Review other POA exempt codes.
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Hypoparathyroidism due to hemochromatosis
- Neonatal hemochromatosis
Tabular List NotesGuidance
Coding notes and annotation back-references applicable to this code.
Inclusion Terms
- GALD
- Neonatal hemochromatosis
Type 1 Excludes
- hemochromatosis E83.11
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.
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
- Disease, diseased - See Also: Syndrome;
- liver (chronic) (organic) - K76.9
- gestational alloimmune (GALD) - P78.84
- GALD (gestational alloimmune liver disease) - P78.84
- neonatal - P78.84
External Cause of Injuries IndexGuidance
References for this code in the External Cause of Injuries Index.
- Disease, diseased
- liver (chronic) (organic)
- gestational alloimmune (GALD)
- GALD(gestational alloimmune liver disease)
- Hemochromatosis
- neonatal
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Clinical InformationClinical
Neonatal Hemochromatosis
an idiopathic form of neonatal hemochromatosis, characterized by liver failure and iron accumulation in the tissues.
Convert P78.84 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code History & ChangesHistory
Replacement P78.84 replaces the following previously assigned code(s):
- E83.118 - Other hemochromatosis
- P78.89 - Other specified perinatal digestive system disorders
Questions About P78.84Overview
Is P78.84 (Other specified perinatal digestive system disorders) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report gestational alloimmune liver disease on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
Is P78.84 exempt from POA reporting?
Yes. CMS lists this code among those exempt from present on admission reporting, so hospitals do not assign a POA indicator for gestational alloimmune liver disease on inpatient claims.
What is the ICD-9 equivalent of P78.84?
Under the General Equivalence Mappings, gestational alloimmune liver disease converts to ICD-9-CM 775.89 (neonat endo/met dis NEC). The mapping is approximate, so confirm the match fits the documentation.
Footnotes
[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.
