Final answer:
There is no time limit specified when assigning codes as sequela according to ICD-10-CM guideline I.B.10. Sequela refers to a condition that is the result of a previous disease or injury.
Step-by-step explanation:
According to ICD-10-CM guideline I.B.10, when assigning codes as sequela, there is no time limit specified. Sequela refers to a condition that is the result of a previous disease or injury. The guideline states that an additional code should be assigned to identify the specific sequela. For example, if someone had a previous heart attack that resulted in heart failure, the code for the heart failure would include an additional code to indicate it is a sequela of the heart attack.