| 89.01 | Interview and evaluation, described as brief |
| 89.02 | Interview and evaluation, described as limited |
| 89.03 | Interview and evaluation, described as comprehensive |
| 89.04 | Other interview and evaluation |
| 89.05 | Diagnostic interview and evaluation, not otherwise specified |
| 89.06 | Consultation, described as limited |
| 89.07 | Consultation, described as comprehensive |
| 89.08 | Other consultation |
| 89.09 | Consultation, not otherwise specified |
| 89.10 | Intracarotid amobarbital test |
| 89.11 | Tonometry |
| 89.12 | Nasal function study |
| 89.13 | Neurologic examination |
| 89.14 | Electroencephalogram |
| 89.15 | Other nonoperative neurologic function tests |
| 89.16 | Transillumination of newborn skull |
| 89.17 | Polysomnogram |
| 89.18 | Other sleep disorder function tests |
| 89.19 | Video and radio-telemetered electroencephalographic monitoring |
| 89.21 | Urinary manometry |
| 89.22 | Cystometrogram |
| 89.23 | Urethral sphincter electromyogram |
| 89.24 | Uroflowmetry [UFR] |
| 89.25 | Urethral pressure profile [UPP] |
| 89.26 | Gynecological examination |
| 89.29 | Other nonoperative genitourinary system measurements |
| 89.31 | Dental examination |
| 89.32 | Esophageal manometry |
| 89.33 | Digital examination of enterostomy stoma |
| 89.34 | Digital examination of rectum |
| 89.35 | Transillumination of nasal sinuses |
| 89.36 | Manual examination of breast |
| 89.37 | Vital capacity determination |
| 89.38 | Other nonoperative respiratory measurements |
| 89.39 | Other nonoperative measurements and examinations |
| 89.41 | Cardiovascular stress test using treadmill |
| 89.42 | Masters' two-step stress test |
| 89.43 | Cardiovascular stress test using bicycle ergometer |
| 89.44 | Other cardiovascular stress test |
| 89.45 | Artificial pacemaker rate check |
| 89.46 | Artificial pacemaker artifact wave form check |
| 89.47 | Artificial pacemaker electrode impedance check |
| 89.48 | Artificial pacemaker voltage or amperage threshold check |
| 89.49 | Automatic implantable cardioverter/defibrillator (AICD) check |
| 89.50 | Ambulatory cardiac monitoring |
| 89.51 | Rhythm electrocardiogram |
| 89.52 | Electrocardiogram |
| 89.53 | Vectorcardiogram (with ECG) |
| 89.54 | Electrographic monitoring |
| 89.55 | Phonocardiogram with ECG lead |
| 89.56 | Carotid pulse tracing with ECG lead |
| 89.57 | Apexcardiogram (with ECG lead) |
| 89.58 | Plethysmogram |
| 89.59 | Other nonoperative cardiac and vascular measurements |
| 89.60 | Continuous intra-arterial blood gas monitoring |
| 89.61 | Systemic arterial pressure monitoring |
| 89.62 | Central venous pressure monitoring |
| 89.63 | Pulmonary artery pressure monitoring |
| 89.64 | Pulmonary artery wedge monitoring |
| 89.65 | Measurement of systemic arterial blood gases |
| 89.66 | Measurement of mixed venous blood gases |
| 89.67 | Monitoring of cardiac output by oxygen consumption technique |
| 89.68 | Monitoring of cardiac output by other technique |
| 89.69 | Monitoring of coronary blood flow |
| 89.7 | General physical examination |
| 89.8 | Autopsy |
