Revisions are made to the ICD periodically …show more content…
This means that the documentation provided will be almost directly translated into these codes allowing much greater levels of detail, including anatomy and pathophysiology, for a particular patient. This has been achieved by extending the codes from a maximum of five characters, as in ICD-9-CM, to a maximum of seven characters. The code expansion can be seen in an example using a patient with an open fracture of the humoral shaft. It would be described by a set of ICD-9-CM codes using 821.11—Open fracture of shaft of femur. If the same case is presented after ICD-10-CM is implemented, the description has substantially changed: S72.351C—Displaced comminuted fracture of shaft of right femur, initial encounter for open fracture type IIIA, IIIB, or IIIC. In addition, it can be seen that in ICD-9-CM there are a total of 16 codes available to describe all the variations in fractures of the femur, whereas in ICD-10-CM, there are over 1,530 codes to accommodate significant differences in the types of fractures of the …show more content…
Codes can be directly mapped from a single ICD-9-CM to a single ICD-10-CM code. For example, the ICD-9-CM code 733.6, Tietzes disease, maps directly to the ICD-10-CM code M94.0, chondrocostal junction syndrome [Tietze]. Other codes require additional information to map for possible solutions. For example, the ICD-9-CM code 649.63, uterine size date discrepancy, antepartum condition or complication, requires information about weeks in pregnancy to match. There are three options: O26.841—Uterine size discrepancy, first trimester ; O26.842—Uterine size date discrepancy, second trimester; and O26.843—Uterine size date discrepancy, third trimester. Some codes require significantly more specificity and map into many more ICD-10-CM code set selections. For example, the ICD-9-CM code 962.9—Poisoning by hormones and synthetic substitutes, has sixteen corresponding ICD-10-CM codes requiring information about both the cause of the poisoning and the type of