kode icd 10 gea2025 ICD-10-CM Index › 'G' Terms › Index Terms Starting With 'G' (Gastroenteritis) Index Terms Starting With 'G' (Gastroenteritis) Gastroenteritis (acute) (chronic) (noninfectious) K52.9E86.0 is a valid billable ICD-10 diagnosis code for Dehydration.It is found in the 2025 version of the ICD-10 Clinical Modification (CM) and can be used in all HIPAA-covered