This information comes from an Army soldbuch. It may or may not be applicable. I hope it is. The following is an excerpt from another site.
These pages recorded any hospital stays the owner was unlucky enough to have suffered. This page is often heavily filled out, even for individuals who were never wounded but saw a lot of service time (guess they liked the pretty nurses…).
The first column, labeled simply “Lazarett” recorded the name of the hospital. More often than not this entry was block line stamped in with inks of various colors.
The second and third columns were for the date, separated by day and month in the first then year in the second.
The third column, which spills onto the next page, was used to describe the problem the soldier was having. The way this was listed was the preference of the individual filling it out and is split about 50/50. Half the time the condition is written in with a word or very short description. In more than one book and more than one entry in each “Angina” was written (guess I buy a lot of Soldbuchs of guys with heart trouble!). Another has multiple entries of “Magen” (stomach) and compound medical terms involving “Magen”. Another option was sort of numerical shorthand to describe the infliction. This is especially true of entries involving actual wounds. Below is a list of the numbers and the corresponding conditions:
1. Typhus
2. Dysentery
3. Tonsillitis
4. Cholera
5. Smallpox
6. Measles
7. Influenza
8. Spotted fever
9. Malaria
10. Tuberculosis
11. Pleura
12. Other Diseases
13. Gonorrhea
14. Syphilis
15. Other STD
16. Glandular diseases
17. Blood illness
18. Pneumonia
19. Other breathing organ complaints excluding TB
20. Teeth
21. Bowels
22. Digestive
23. Kidneys
24. Non sexually transmitted Genital Problems
25. Skin
26. Nerve/Mental
27. Eye
28. Ear
29. Bone and joint disorders
30. Muscle and joint disorders
31.Wounds and sickness due to enemy action:
a) Bulletwounds
b) Handgrenade, mortar, artillery (shrapnel)
c) Burns
d) Bombing or other air attack
e) Ariel combat
f) Tetanus
g) Sepsis or gangrene
32. Heat
33. Cold
34. Accident or self mutilation:
h) Planecrash
i) Suicide (including attempt or self inflicted wound)
35. Birth defects and weaknesses
36. Observation for feigning