icd 10 history of tobacco use Z87.891 – Personal nicotine dependence icd 10 code for history
Description
Professor Huguenin is a heavy smoker

In addition to his numerous movie appearances, Wood has also lent his voice to several video game characters and even opened his own record label, Simian Records

Make a note of this and next time, cut your smoke time in half and use a milder wood such as apple or alder

So, its pretty common for blockages to cause hyposmia or anosmia
How Long Does It Last

Metabolism Varenicline undergoes minimal metabolism, with 92% excreted unchanged in the urine
