What is cpt code for 401.1?

401.1 is an ICD-9 code not a CPT code (which are 5 numerical digits not 3). For a reference go to this link: http://www.aafp.org/fpm/990700fm/27.html Do an Edit/Find: "401.1" to get right to this description: "You see a patient for follow-up of benign essential hypertension. The proper code would be 401.1 The fourth digit identifies the disease as benign and thus is the most specific description of your patient's condition. If, however, the patient also had benign hypertensive Heart disease, then you would include a fifth digit: The proper code would be 402.10 or 402.11 depending on the absence or presence, respectively, of congestive heart failure." Hope this helps, Mrs. Youngberg, RHIA