I just do the same thing for everything (연가).
Haven't had issues so far (I've been doing it for about 5 or 6 years now).
Keep in mind that many Korean teachers have no real idea how to work NEIS either.
Also, here's a nice explanation that some other poster left on waygook some time ago about all the different kinds of leave and some basic instructions on how to apply for them.
Might be helpful!
Requesting Leave Using the NEIS System
Step 1: Go to
www.neis.cbe.go.kr and log in using your NEIS ID and password.
Step 2: Click the top tab titled 나이스.
Step 3: On the left menu, select the top option titled 복무, followed by the top option titled 개인근무상황신청.
Step 4: A pop-up will appear. Select a tab called 신청 in the middle of the pop-up, on the right. Another pop-up will appear.
Step 5: At the top of the pop-up, there is a dropdown menu titled 근무상황. There are multiple entries. For those relevant to you, please see the list that follows these steps.
Step 6: Enter the date and time of your departure and return, your phone number (연락처), the location of your leave (목적지) and the reason (사유 또는 용무) and click 승인요청 on the top right. Another pop-up will appear.
Step 7: Click 결재자지정 at the top right to select your supervisors name. Another pop-up will appear. Select the appropriate name (principal, vice principal etc) and then 닫기 on the top right to close the pop-up.
Step 8: Click the 상신 tab on the top right to send your request for leave.
The following are descriptions of the types of leave (see step 5 above):연가: vacation (counts towards contracted vacation days).
This type of leave always counts as 1 whole vacation day (it is not possible to use 1 hour of 연가). This type of leave is used when you go on vacation.
병가: sick day (counts towards contracted sick days).
This type of sick leave always counts as 1 whole sick day (it is not possible to use 1 hour of 병가).
병조퇴: sick leave (counts towards contracted sick days).
Example: You leave at 3pm due to sickness. You will accrue 3 hours towards 1 sick day (1 day = 8 hours).
조퇴: leave early (counts towards contracted vacation days).
Example: You leave at 3pm due to personal reasons (any reason that is not official). You will accrue 3 hours towards 1 holiday day (1 day = 8 hours).
병지참: arriving at work late due to sickness (counts towards contracted sick days).
Application for this type of leave should be completed before 9am. If due to your situation this is not possible, inform a co-worker and/or supervisor.
Example: You arrive late to work at 11am due to sickness. You will accrue 2 hours towards 1 sick day (1 day = 8 hours).
지참: arriving at work late due to personal reasons (any reason that is not official) (counts towards contracted vacation days).
Application for this type of leave should be completed before 9am. If due to your situation this is not possible, inform a co-worker and/or supervisor.
Example: You arrive late to work at 11am due to personal reasons. You will accrue 2 hours towards 1 vacation day (1 day = 8 hours).
출장: business trip (does not count towards contracted vacation days). There are two types of business trip:
1. 근무지내출장: business trip in your area / county.
2. 근무지외출장: business trip outside your area / county.
The first type is when you are on official business locally.
The second type is for trips outside of the county. To apply for the second type of business trip, you should click on 개인출장관리 in step 3 above (instead of 개인근무상황신청). On the following pop-up, click the dropdown menu and select the top option, 국내출장 (관외).
외출: personal leave (does count towards contracted vacation / sick days). 외출 differs from 조퇴 / 병조퇴 as you are expected to return to work shortly after leaving.
Example: You come to the office at 9am as usual. At 10am you want to visit the bank for personal reasons, and are planning to come back at 11am. For this, you use 외출. You will accrue 1 hour towards 1 vacation day.
There are two types of 외출:
1. 병외출
2. 외출
The first applies for sickness-related reasons, and will count towards contracted sick days. The second applies for personal reasons, and will count towards contracted vacation days.