2027 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 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 794. 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 the other POA exempt codes in Digestive system disorders of newborn (P76-P78).
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Hypoparathyroidism due to hemochromatosis
- Neonatal hemochromatosis
- Neonatal iron overload
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to P78.84: its own notes plus those printed at P78 and Chapter 16. A note printed at a category, block or chapter applies to every code under it.
Includes
Further defines, or gives examples of, the content of the category.
- conditions that have their origin in the fetal or perinatal period (before birth through the first 28 days after birth) even if morbidity occurs later
Applicable To
Conditions this code is used for: synonyms of the title or, for "other specified" codes, the conditions assigned to it. The list is not exhaustive.
- GALD
- Neonatal hemochromatosis
Excludes1
Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.
- hemochromatosis (E83.11-)
Excludes2
Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.
Notes
General instructions on how these codes are used.
- Codes from this chapter are for use on newborn records only, never on maternal records
Source: CMS ICD-10-CM Tabular List. How to read instructional notes.
Referenced in Other NotesGuidance
Instructional notes printed at other codes that name P78.84, its category, or a range that includes it.
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
Disease, diseased See Also: Syndrome;
neonatal P78.84
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
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
What is the ICD-10 code for gestational alloimmune liver disease?
The ICD-10-CM code for gestational alloimmune liver disease is P78.84 (sometimes written as P7884). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
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, 2026 through September 30, 2027.
What MS-DRG does P78.84 group to?
When gestational alloimmune liver disease is the principal diagnosis on an inpatient stay, it groups to MS-DRG 794 (neonate with Other Significant Problems), which carries a relative weight of 1.4934. Higher weights mean higher Medicare reimbursement.
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. The code appears in the Digestive system disorders of newborn (P76-P78) range of the CMS exempt list.
Can P78.84 be reported with a code from E83.11?
Not as a rule. The Excludes1 note on P78.84 lists "hemochromatosis (E83.11-)". An Excludes1 note means the excluded code is never reported together with this one; the only exception is when the two conditions are unrelated to each other (Official Guidelines, Section I.A.12.a).
