AHA Coding Clinic® for ICD-9 - 1986 March - April; Coding Guidelines
Late Effect
A late effect is the residual effect (condition produced) alter the acute phase of an illness or injury has terminated. There is no time limit on when a late effect code can be used. The residual may be apparent early, such as in cerebrovascular accident cases, or it may occur months or years later, such as that due to a previous injury. The classification provides only a few codes for cause of late effect, and they are as follows: Note: As of October 1, 1997, category 438 has been expanded to fourth and fifth digits to indicate specific types...
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