The following fourth-character subdivisions are for use with categories K25-K28:
.0 Acute with haemorrhage
.1 Acute with perforation
.2 Acute with both haemorrhage and perforation
.3 Acute without haemorrhage or perforation
.4 Chronic or unspecified with haemorrhage
.5 Chronic or unspecified with perforation
.6 Chronic or unspecified with both haemorrhage and perforation
.7 Chronic without haemorrhage or perforation
.9 Unspecified as acute or chronic, without haemorrhage or perforation
Includes: erosion (acute) of stomach ulcer (peptic):
. pylorus
. stomach
Use additional external cause code (Chapter XX), if desired, to identify drug, if drug-induced.
Excludes: acute haemorrhagic erosive gastritis (K29.0)
peptic ulcer NOS (K27.-)