Yup, Docs as Code is the more well-known phrase.

https://www.writethedocs.org/guide/ See

Approaches to creating documentation Docs as Code Docs as Code at Write the Docs Docs as Code at other conferences, video casts and articles DocOps What is DocOps, anyway? Who practices DocOps? DocOps resources

This really depends on where you first encountered the term. Anne Gentle wrote Docs Like Code, the first book I read on this topic 8 years ago. I always consider the terms "docs as code" and "docs like code" to be interchangeable, and usually use both when discussing the topic with an audience that includes a wide variety of different individuals. I think "docs as code" is probably used more in purely dev circles due to the proliferation of the "everything-as-code" construction seen in other dev-adjacent disciplines (infra-as-code, config-as-code, etc.)