| Y54.0 | Mineralocorticoids 
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	| Y54.1 | Mineralocorticoid antagonists [aldosterone antagonists] 
 | 
	| Y54.2 | Carbonic-anhydrase inhibitors Acetazolamide
 | 
	| Y54.3 | Benzothiadiazine derivatives 
 | 
	| Y54.4 | Loop [high-ceiling] diuretics 
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	| Y54.5 | Other diuretics 
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	| Y54.6 | Electrolytic, caloric and water-balance agents Oral rehydration salts
 | 
	| Y54.7 | Agents affecting calcification Parathyroid hormones and derivatives
 Vitamin D group
 
 | 
	| Y54.8 | Agents affecting uric acid metabolism 
 | 
	| Y54.9 | Mineral salts, not elsewhere classified 
 |