The TV star's body was found at her flat in Honor Oak Park near some open bank statements.
Ⓒ Vimeo, Julia Kennedy
Lynsey died in November 2013
Assistant Coroner Sarah Ormond-Walshe said the verdict concluded that although Lynsey hanged herself and left a note, drugs found in her system meant that it could not be proven she intended to take her own life.
"[Ms Pow] appeared to have obtained some cocaine and while under the influence of cocaine she appeared to hang herself," she said. "It is likely to have influenced her mind so it cannot be said that she intended to die.
"I am recording this as a drug-related self-harm death."
Duncan Pow has starred in Holby City and Dream Team
Scotland-born Lynsey, whose other small-screen credits included Doctors and Secret Diary Of A Call Girl, was married to sports presenter and former Fame Academy contestant Ashley House.
Lynsey's actor brother Duncan Pow also starred in Waterloo Road and Doctors as well as Law and Order and Holby City.