Shock

**Definition:** Shock is a life-threatening medical condition that occurs due to inadequate substrate for aerobic cellular respiration. In the early stages this is generally an inadequate tissue level of oxygen. Shock, not elsewhere classified is a shock that isn't classified elsewhere.

**Exclusions:** - Psychic shock - Anaphylactic shock NOS - Anaphylaxis due to allergic reaction to food - anaphylactic shock due to serum - electric shock - lightening shock - Traumatic shock, not elsewhere classified - Toxic shock syndrome