Classification of Diseases

1. Classification of Diseases
Dr. Sawsan Mustafa Abdalla
Associate Professor

2. Disease??:

3. Health:
Health is a state of complete physical,
mental and social wellbeing and
not merely an absence of disease
or infirmity

4. •The International Classification
of Diseases (ICD) is the
standard diagnostic tool for
epidemiology, health
management and clinical
purposes.

5. •This includes the analysis of the
general health situation of
population groups. It is used to
monitor the incidence and
prevalence of diseases and
other health problems.

6. •It is used to classify diseases
and other health problems
recorded on many types of
health and vital records
including death certificates and
health records.

7. •In addition to enabling the
storage and retrieval of
diagnostic information for
clinical, epidemiological and
quality purposes,
• these records also provide the
basis for the compilation of
national mortality and morbidity
statistics by WHO Member
States.

8. •It is used for reimbursement
and resource allocation
decision-making by countries.

9. Disease:
The state of un-wellbeing

10. A system for classification of
diseases is needed whereby
diseases could be grouped
according to certain
common characteristics,
that would facilitate the
statistical study of disease
phenomena.

11. Many approaches were tried to
classify diseases.
Jhon Graunt in 17
th
century in his
study of Bills of Mortality,
arranged diseases in an
alphabetical order.

12. More scientific approach
was adopted in classifying
disease according to certain
characteristics.

13. Classification was as follow:
a-the part of the body affected
b-the etiologic agent
c-the kind of morbid change
produced by the disease
The kind of disturbance of
function produced by the
disease or injury.

14. International
Classification
ICD

15. ICD
•Certain infecous and parasitic
diseases(A00-B99)
•Neoplasm(C00-D48)
•Diseases of the blood and blood
forming organs and certain
disorders involving the immune
mechanism(D50-889)

16. ICD
•Endocrine,nutritional and
metabolic diseases(E00-E90)
•Mental and behavioral disorders
(F00-F99)
Diseaes of the nervous
system(G00-G99)

17. ICD
•Diseases of the eyeand
adnexa(H00-H59)
•Diseases of the ear and mastoid
process(H60-H95)
•Diseases of the circulatory
system (I00-I99)
•Diseases of the respiratory
system(J00-J99)

18. ICD
Diseases of digestive
system(K00-K93)
Disease of the skin and
subcutaneous tissue(L00-L99)
Diseases of musculoskeletal
system and connective
tissue(M00-M99)
Diseases of genitourinary
system(N00-N99)

19. Materials & methods
•Pregnancy, childbirth and
puerperium(O00-O99)
•Certain conditionsoriginating in
perinatal period(P00-P96)
•Congenital
malformations,deformations and
chromosomal
abnormaslities(Q00-Q990

20. oSymptoms, signs and abnormal
clinical and laboratory findings,
not else where classified(R00-
R99)
oInjury, poising and certain
other consequences of external
causes9S00-T98)

21. ICD
oExternal causes of morbidity
and mortality(V01-Y90).
oFactors influencing health
status and contact with health
services(Z00-Z99).