In the case of intracranial hemorrhage,coders tend to ignore the cause of intracranial hemorrhage in the cod-ing,whether it is spontaneous intracranial hemorrhage or intracranial hemorrhage caused by trauma,and the coding of the two is completely different in ICD-10.The former is classified as I60-I62 while the latter is classified as S06.Different etiology will also enter different DRG groups when DRG is included.When determining the cause,the site of intracranial hemorrhage should be determined whether it is subarachnoid hemorrhage,or epidural/subdural hemorrhage or cerebral parenchymal hemorrhage,be-cause different bleeding sites have different codes in ICD-9-CM-3 when performing blood removal in cranial swelling.The classifi-cation of epidural hematoma removal was on 01.24,subdural or subarachnoid hematoma removal was on 01.31,and intracerebral parenchymal hematoma removal was on 01.39.The removal of intracranial hematoma is usually divided into cone craniotomy,skull trepanation and drainage and traditional craniotomy according to different operation methods.The operation process of these three operations is obviously different,and coders need to understand the characteristics of the three operations to achieve accurate classification.In the DRG grouping,the disease code is different from the surgical code and the DRG group will be different.Through understanding the definition and etiology of intracranial hematoma removal,the coding ideas of intracranial hematoma re-moval were analyzed,so as to improve the professional ability of coders and ensure the accuracy of DRG data.