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Subclass UH
| UH20-910 | Other services | |
| UH20-25 | Chaplains | |
| UH201-515 | Medical and sanitary services | |
| UH520-(560) | Care of sick and wounded. Relief societies | |
| UH600-629.5 | Military hygiene and sanitation | |
| UH700-705 | Public relations. Press. War correspondents | |
| UH750-769 | Military social work. Social welfare services | |
| UH800-910 | Recreation and information services | |
