A00-B99 Infectious/Parasitic Diseases

C00-D49 Neoplasms

D50-D89 Blood/Immune Mechanism

E00-E89 Endocrine/Metabolic

F01-F99 Mental/Behavioral

G00-G99 Nervous System

H00-H59 Eye/Adnexa

H60-H95 Ear/Mastoid

I00-I99 Circulatory

J00-J99 Respiratory

K00-K95 Digestive

L00-L99 Skin/Subcutaneous

M00-M99 Musculoskeletal System/Connective Tissue

N00-N99 Genitourinary

O00-O9A Pregnancy/Childbirth/Puerperium

P00-P96

Perinatal Period

Q00-Q99 Congenital/Deformations/Chromosomal

R00-R99 Symptoms/Signs/Abnormal Clinical/Lab Findings,Not Elsewhere Classified

S00-S99

Injuries

T07-T88  Injury, Poisoning & Certain Other Consequences of External Causes

V00-V99 Transport Accidents

W00-X58 External Causes of Morbity

X71-Y99 Self-Harm/Assault/Adverse Events

Z00-Z99 Factors Influencing Health Status & Contact With Health Services