PIP coverage is comparable to Medical Payments Coverage in a Texas Insurance Policy in that both are no-fault and pay for similar expenses. The difference between the two is this: Medical Payments Coverage only pays for reasonable and necessary medical expenses. PIP pays for that and up to 80% of lost wages, both to a maximum of whatever the amount of coverage is that has been purchased. Their similarity is that both are nofault coverages.
Texas Insurance Code, Article 5.063(b) sets up PIP coverage as a quick source (payable with 30 days of providing the information needed to pay the claim) of funds for an insured accident victim when the losses are for medical expenses or lost wages. The legal minimum is $2500, but much higher amounts can be purchased. The highest this writer has seen by an individual is $50,000.
PIP coverage exists in every automobile policy automaticly, unless rejected in writing by each insured. This is firmly established in Texas law in the cases, Ortiz v. State Farm Mutual Automobile Co., and Old American v. Sanchez.