Final answer:
In ICD-10-CM, there is no specified time limit for assigning sequela codes. These codes represent the complications or residual effects stemming from a previous disease or injury and can be used regardless of the time passed since the initial event.
Step-by-step explanation:
The ICD-10-CM guideline I.B.10 refers to the coding of sequela for conditions with no time limit on when they can be used. A sequela is the residual effect after the acute phase of an illness or injury has ended. There is no time frame specifying when a sequela code cannot be used. The presence of a sequela generally implies a condition that is a consequence of a previous disease or injury. The code is used to indicate a current condition that is a complication or result of a previous condition.