Hmm, hindi ako sure kung may number coding pa rin ngayon kasi nagbago na maraming rules since pandemic, pero honestly best mo talaga i-check ang official SSS website or mag-call ka nalang sa kanila directly para updated info! One of my mum friends recently went to renew something and sabi niya may appointment system na sila ngayon instead, pero baka different branches ang setup kaya better safe than sorry talaga.