When you're writing the patient's diagnosis on their bill.
197.1
99396 is a CPT code, not an ICD9 code. The ICD9 code you use will depend on the condition or reason for the visit.
ICD9 code is the diagnosis code and a CPT is the procedure code
Icd9 for recent toe surgery
icd9 code is 597.80 and its urethritis unspecified.
icd9 code , not icda
code for Hyperglycemia is 790.29
995.91
Rotoscoliosis
414.00
v58.78
gastroparesis