ISO 10001:2018 does not prescribe the substantive content of customer satisfaction codes of conduct, nor does it address other types of codes of conduct, such as those that relate to the interaction between an organization and its personnel, or between an organization and its suppliers
This ISO has many versions, including:
ISO 10002:2018 customer satisfaction and complaint handling
ISO 10003:2018 customer satisfaction – Guidelines for dispute resolution external to Organizations
ISO 10004:2018 Quality management — Customer satisfaction — Guidelines for monitoring and measuring.