Panic Disorders    
People with panic disorder experience heart-pounding terror that strikes suddenly and without warning. Since they cannot predict when a panic attack will seize them, many people live in persistent worry that another one could overcome them at any moment.

Paranoia and Paranoid Disorders  
Symptoms of paranoia include feelings of persecution and an exaggerated sense of self-importance. The disorder is present in many mental disorders and it is rare as an isolated mental illness. A person with paranoia can usually work and function in everyday life since the delusions involve only one area. However, their lives can be isolated and limited.

Pastoral Counseling    
Pastoral counselors are counselors working within traditional faith communities to incorporate psychotherapy, and/or medication, with prayer and spirituality to effectively help some people with mental disorders. Some people prefer to seek help for mental health problems from their pastor, rabbi, or priest, rather than from therapists who are not affiliated with a religious community.

Payer
The public or private organization that is responsible for payment for health care expenses.

Performance measure  
A measure that describes the health care being provided. Current performance measures indicate whether a health plan or provider has appropriately provided certain services expected to lead to desirable outcomes.

Pharmacy Benefit Manager (PBM)  
PBMs are third party administrators of prescription drug benefits.

Phobias    
Phobias are irrational fears that lead people to altogether avoid specific things or situations that trigger intense anxiety. Phobias occur in several forms, for example, agoraphobia is the fear of being in any situation that might trigger a panic attack and from which escape might be difficult; social phobia is a fear of being extremely embarrassed in front of other people.

Physician Assistant  
A physician assistant is a trained professional who provides health care services under the supervision of a licensed physician.

Plan of care
A treatment plan especially designed for each child and family, based on individual strengths and needs. The caregiver(s) develop(s) the plan with input from the family. The plan establishes goals and details appropriate treatment and services to meet the special needs of the child and family.

Play Therapy  
Geared toward young children, play therapy uses a variety of activities-such as painting, puppets, and dioramas-to establish communication with the therapist and resolve problems. Play allows the child to express emotions and problems that would be too difficult to discuss with another person.

Point-of-service plan (POS)  
A modified managed care plan under which members do not have to choose how to receive services until they need them. Members receive coverage at a reduced level if they choose to use a non-network provider.

Posttraumatic Stress Disorder (PTSD)    
Posttraumatic Stress Disorder is an anxiety disorder that develops as a result of witnessing or experiencing a traumatic occurrence, especially life threatening events. PTSD can cause can interfere with a person's ability to hold a job or to develop intimate relationships with others.

Practice guidelines
Systematically developed statements to standardize care and to assist in practitioner and patient decisions about the appropriate health care for specific circumstances. Practice guidelines are usually developed through a process that combines scientific evidence of effectiveness with expert opinion. Practice guidelines are also referred to as clinical criteria, protocols, algorithms, review criteria, and guidelines.

Pre-existing condition
A medical condition that is excluded from coverage by an insurance company because the condition was believed to exist prior to the individual obtaining a policy from the insurance company. Many insurance companies now impose waiting periods for coverage of pre-existing conditions. Insurers will cover the condition after the waiting period (of no more than 12 months) has expired. (See also, HIPAA)

Preferred Provider Organization (PPO)  
A health plan in which consumers may use any health care provider on a fee-for-service basis. Consumers will be charged more for visiting providers outside of the PPO network than for visiting providers in the network (American Association of Preferred Provider Organizations).

Primary care physician (PCP)    
Physicians with the following specialties: group practice, family practice, internal medicine, obstetrics/gynecology, and pediatrics. The PCP is usually responsible for monitoring an individual's overall medical care and referring the individual to more specialized physicians for additional care.

Prior authorization
The approval a provider must obtain from an insurer or other entity before furnishing certain health services, particularly inpatient hospital care, in order for the service to be covered under the plan.

Psychiatric Emergency Walk-in
A planned program to provide psychiatric care in emergency situations with staff specifically assigned for this purpose. Includes crisis intervention, which enables the individual, family members and friends to cope with the emergency while maintaining the individual's status as a functioning community member to the greatest extent possible and is open for a patient to walk-in.

Psychiatrist    
A psychiatrist is a professional who completed both medical school and training in psychiatry and is a specialist in diagnosing and treating mental illness.

Psychoanalysis  
Psychoanalysis focuses on past conflicts as the underpinnings to current emotional and behavioral problems. In this long-term and intensive therapy, an individual meets with a psychoanalyst three to five times a week, using "free association" to explore unconscious motivations and earlier, unproductive patterns of resolving issues.

Psychodynamic Psychotherapy  
Based on the principles of psychoanalysis, this therapy is less intense, tends to occur once or twice a week, and spans a shorter time. It is based on the premise that human behavior is determined by one's past experiences, genetic factors, and current situation. This approach recognizes the significant influence that emotions and unconscious motivation can have on human behavior.

Psychosocial Rehabilitation  
Therapeutic activities or interventions provided individually or in groups that may include development and maintenance of daily and community-living skills, self-care, skills training includes grooming, bodily care, feeding, social skills training, and development of basic language skills.