Portal Hypertensive is coded with K76.6 - Portal hypertension. Next look at the coding notes, stating to code any associated complications such as: portal hypertensive gastropathy K31.89 – Other diseases of the stomach and duodenum.
Since portal hypertensive gastropathy does not have its own code, it is listed as Other.
Other: Documentation indicates a disease/complication of the stomach and duodenum that is not included in K25.0 - K31.84.
Therefore, your codes would likely be K76.6, K31.89