Final answer:
The use of the chapter on external causes of morbidity in the tabular list is mandatory for intentional injuries due to the need for accurate documentation for legal and treatment purposes.
Step-by-step explanation:
The chapter on external causes of morbidity in the tabular list is considered optional for most cases. However, there is an expectation for its use in specific situations.
The correct answer to the question "The external causes of morbidity chapter in the tabular list is optional except for what?" is B) Intentional injuries. Accurate documentation of intentional injuries is imperative for legal considerations and treatment purposes. It may include injuries resulting from violence, self-harm, or criminal activities.