References
^ Buck, Carol J.; Abraham, Michelle; Ahlman, Jay T.; Anderson, Caryn; Boudreau, Angela J. (2014). 2012 ICD-9-CM, for Physicians, Volumes 1 and 2 Professional Edition (Spiral bound) with 2012 HCPCS Level II Professional Edition and CPT 2012 Professional Editi, Elsevier Science Health Science div. BiggerBooks. ISBN 9781455724673 (revised Feb 2024)^ (2013). 2012 ICD-9-CM, for Physicians, Volumes 1 and 2 Professional Edition (Spiral bound) with 2012 HCPCS Level II Professional Edition and CPT 2012 Professional Editi ECampus. ISBN 9781455724673 (revised Mar 2023)
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