E003-char group
Congenital iodine-deficiency syndrome
⇄ Primary-code rule changed vs QĐ4469
Coding rules (TT06)
- ●Avoid — more specific 4-5 char codes exist (see below)
Coding guidance (WHO 2019)
Incl.: endemic conditions associated with environmental iodine deficiency either directly or as a consequence of maternal iodine deficiency. Some of the conditions have no current hypothyroidism but are the consequence of inadequate thyroid hormone secretion in the developing fetus. Environmental goitrogens may be associated. Use additional code (F70-F79), if desired, to identify associated mental retardation. Excl.: subclinical iodine-deficiency hypothyroidism (E02)