(ABCNEWS.GO) — A Texas nurse and mother has sued her insurance company after her 6-year-old daughter died of a brain injury when appendicitis surgery allegedly went wrong while the family was on vacation in the Dominican Republic in 2012.

Marissett Tolentino alleges in a lawsuit filed Dec. 17 in Galveston County Court that Blue Cross Blue Shield of Texas denied her sick daughter Isabella a medical jet that they were entitled to under their policy, which led to surgery “being performed in substandard conditions” at a local hospital.

Isabella had her appendix surgically removed at a BCBSTX-authorized facility, Hospiten Bavaro in Punta Cana, but she never came out of the anesthesia and suffered a fatal brain injury, the lawsuit alleges.

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