Medically induced Rita, once GI treated (10)

I believe the answer is:

iatrogenic

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'medically induced' is the definition.
The answer and definition are different parts of speech. However, past participle verbs and adjectives sometimes define each other.

'rita once gi treated' is the wordplay.
'treated' is an anagram indicator.
'rita'+'once'+'gi'='ritaoncegi'
'ritaoncegi' anagrammed gives 'IATROGENIC'.

Can you help me to learn more?

(Another definition for iatrogenic that I've seen is " With such an illness".)

I've seen this clue in the Sydney Morning Herald.

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