It is correct that the level `grade 11 and above' are coded as 11. As the data was collected this way, it is not possible to split the code 11.

Education as a background variable categorizes the levels as

a) No Education;
b) Primary (grades 1-5); Some secondary (grades 6-9);
c) and SLC and above (grade 10+).

We do not disaggregate the education level at post-secondary education. Nepal has 9% of women and 13% of men with more than secondary education. The NDHS included net attendance rate for primary and secondary education. Analysis at the tertiary level was not included. However, this could be discussed for future surveys.