一患者主因间断性呕血4年,病情加重3天后于2003年11月5日入院,经纤维内窥镜检查,被诊断为“贲门粘膜撕裂症”。编码过程:确定导词。先以“撕裂”为主导词,查“撕裂”项下无“食管”,再以“损伤”为主导词,查得“食管”编码为“S27.8”。核对《ICD-10》第一卷,“S27.8”在章、节 One patient suffered intermittent vomiting for 4 years. He was admitted to hospital on November 5th, 2003 after being sickened for 3 days. He was diagnosed as a “valve tear of the cardia” by fiberoptic endoscopy. Encoding process: Determine the leader. First, “Tear” was used as the leading word, and there was no “Esophagus” under the “Tear” item. Then “Damage” was used as the leading word. The “Esophagus” code was found to be “S27.8”. Check the first volume of “ICD-10”, “S27.8” in the chapter and section