Black lips or having very dark colored lips is contributed by several factors and can be used as indicators for certain conditions that are happening inside the body. Though very rare, there are certain severe medical conditions that can cause the lips to turn a darker shade or even black like having cancer. It can be contributed by living a modern lifestyle, certain eating habits, and some medications. There are patients that naturally have black lips or dark-colored lips.
Substantial - either now or in the next three months. 1  significant harm or danger due to your physical or mental health or behaviour.  being unable to carry out many personal care and daily household chores, causing significant risks to your independence.
Medically necessary, criteria. A. Appropriate for the symptoms and diagnosis or treatment of a condition, illness or injury. B. Provides for the diagnosis or direct care and treatment of the condition, illness or injury.C. In accordance with the standards of good medical practice in the service area.edically necessary. Managed care adjective Referring to a covered service or treatment that is absolutely necessary to protect and enhance the health status of a Pt, and could adversely affect the Pt's condition if omitted, in accordance with accepted standards of medical practice. See Futility.