References
^ Ingenix (2015). ICD-9-CM for Skilled Nursing Facilities, Inpatient Rehabilitation Facilities, and Hospices, Volumes 1-3: Expert, CENGAGE Delmar Learning. BiggerBooks. ISBN 9781601514981 (revised Feb 2024)^ (2013). ICD-9-CM for Skilled Nursing Facilities, Inpatient Rehabilitation Facilities, and Hospices, Volumes 1-3: Expert ECampus. ISBN 9781601514981 (revised Mar 2015)
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