ICD-10-CM > K00-K95 > K20-K31 > K29 > K29.0 K29.0 Acute gastritis Non-Billable/Non-Specific Use Additional code to identify:alcohol abuse and dependence (F10.-) Type 1 Excludes erosion (acute) of stomach (K25.-) Codes K29.00Acute gastritis without bleedingK29.01Acute gastritis with bleeding