Pāṭimokkha

In Theravada Buddhism, the Pāṭimokkha is the basic code of monastic discipline, consisting of 227 rules for fully ordained monks (bhikkhus) and 311 for nuns (bhikkhuṇīs).

If a monk breaks any one of the rules he is automatically "defeated" in the holy life and falls from monkhood immediately.

The thirteen saṅghādisesas for bhikkus are: The aniyata are two indefinite rules where a monk is accused of having committed an offence with a woman in a screened (enclosed) or private place by a lay person.

These rules consist of Sāruppa (proper behavior; 26), Bhojanapatisamyutta (food; 30), Dhammadesanāpatisamyutta (teaching dhamma; 16) and Pakinnaka (miscellaneous; 3).

In many countries, it is also standard for novice monks (samanera) to follow the Sekhiyavatta rules in addition to the Ten Precepts.