Review the case study below. Indicate if you agree with the CAC codes assigned or what changes you would make and the support for these changes:
Patient is a 77 year old male patient diagnosed with emphysema 5 years ago was admitted with a COPD exacerbation and acute hypoxic respiratory failure. Treatment included oxygen requirements of 4L, nebulizer treatments and the initiation of oral steroids. Patient has a 60 year smoking history, recently quit, and is on 1L home oxygen as needed.
CAC ICD-10-CM code selection:
J44.1 - COPD with exacerbation (emphysema)
J96.00 - Acute respiratory failure
R09.02 - Hypoxia
Z79.891 - History of nicotine dependence
Z99.81 - Dependence on supplemental oxygen