Certain Conditions Originating in the Perinatal Period

**Includes:** - conditions that have their origin in the fetal or perinatal period (before birth through the first 28 days after birth) even if morbidity occurs later

**Notes:** - Codes from this chapter are for use on newborn records only, never on maternal records

**Excludes2:** - congenital malformations, deformations and chromosomal abnormalities (Q00-Q99) - endocrine, nutritional and metabolic diseases (E00-E88) - injury, poisoning and certain other consequences of external causes (S00-T88) - neoplasms (C00-D49) - tetanus neonatorum (A33)