do you mean PNH as in Phnom Penh? if so, you should be a bit more careful...not so much an issue here, but definitely when you're booking flights!

For your reference, you can just go to the Star Alliance site to find what lounge you can access. http://www.staralliance.com/en/benef...lounge-finder/

Last time I was at PNH, which was 3 years ago, there was a mediocre contracted lounge for J passengers, but no lounge access for *G travelling in economy. May be different now so check the site.