Karthik, your code will be 01. Because you are not considered passed until you have passed in all your subjects in your 12th. A candidate who is appearing in the qualifying examination, i.e., 12th Standard in 2020, whose result is awaited, may apply and appear in the test but he/she shall not be eligible for admission to the Undergraduate Medical Courses, if he/she does not pass the qualifying examination with the required pass percentage at the time of first round of Counselling.

As per the information provided by you, Code 2 is applicable to you. You should fill Code 2 in your application form.

For further information regarding the codes and eligibility, you can visit official website or the link provided below,

https://medicine.careers360.com/articles/neet-eligibility-criteria