O99: Other maternal diseases classifiable elsewhere but complicating pregnancy, childbirth and the puerperium

O99.2: Endocrine, nutritional and metabolic diseases complicating pregnancy, childbirth and the puerperium

The body produces energy from food. Furthermore, the body makes construction material from food, for instance to repair or construct tissue. This is also called metabolism. The metabolism is influenced by various messenger substances.

Your disease makes your pregnancy, the birth or childbed more difficult. You may also already have had this kind of disease before your pregnancy. The disease can then also have got worse as a result of your pregnancy, the birth or childbed.