2007 ICD-9-CM Procedure 93.18 Breathing exercise Actions performed to provide therapy on respiratory or lung exertion. Therapeutic exercises aimed to deepen inspiration or expiration or even to alter the rate and rhythm of respiration. 93.18 is a specific code that can be used to specify a procedure 93.18 contains 1 index entry View the full Volume 3 93.* hierarchy Index entries containing 93.18: Exercise (physical therapy) NEC 93.19 breathing 93.18