The Louth woman who died in the crash at West Barkwith last week has been named as 63-year-old Nicole Haslehurst.
She was driving her silver Kia Picanto when it was in a collision with a silver Audi TT on the A157 at around 5.15pm.
She had to be cut free from the car and sustained fractures and internal injuries, but Lincolnshire Police confirmed that she had sadly died on Thursday.
She had been taken to Queen’s Medical Centre in Nottingham and underwent surgery on Tuesday.
The road was closed until 11pm after the crash while emergency services cleared the scene.
The driver of the Audi, a 31-year-old woman from Lincoln, received treatment for minor injuries.
Police are renewing their appeal for information about the crash to assist them in understanding what happened.
Anyone who witnessed the collision or who saw the vehicles prior to the incident should contact the Collision Witness Hotline on 01522 558855, quoting incident 353 of November 12.