Internal Medicine

What they do most for Medicare patients

Service, sort	Code, sort	Times billed, sort	Patients, sort
Thyroid hormone, t3 measurement, free	84481	72,265	48,441
Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus	87426	72,954	57,231
Therapy procedure using exercise to develop strength, endurance, range of motion, and flexibility, each 15 minutes	97110	75,781	4,510
Measurement of antibody (ige) to allergic substance, crude allergen extract, each	86003	76,450	1,874
Ultrasound of both sides of head and neck blood flow	93880	78,415	75,722
Initial preventive physical examination; face-to-face visit, services limited to new beneficiary during the first 12 months of medicare enrollment	G0402	83,712	83,712
Blood glucose (sugar) level	82947	86,881	44,091
Removal of skin and tissue, 20.0 sq cm or less	11042	87,750	21,105
Ldl cholesterol level	83721	88,060	56,936
Physician or allowed practitioner supervision of a patient receiving medicare-covered services provided by a participating home health agency (patient not present) requiring complex and multidisciplinary care modalities involving regular physician or allow	G0181	89,205	30,611
Emergency department visit with high level of medical decision making	99285	94,392	89,119
New patient office or other outpatient visit, 60-74 minutes	99205	96,616	96,610
Assessment of emotional or behavioral problems	96127	97,520	63,096
Folic acid level, serum	82746	103,665	78,637
Dxa bone density measurement of hip, pelvis, spine	77080	103,986	101,769
Creatine kinase (cardiac enzyme) level, total	82550	104,178	66,193
Detection test by immunoassay with direct visual observation for influenza virus	87804	108,209	53,727
Face-to-face behavioral counseling for obesity, 15 minutes	G0447	108,261	58,698
Telephone medical discussion with physician, 5-10 minutes	99441	108,680	68,941
Iron binding capacity	83550	114,195	78,806
Psa (prostate specific antigen) measurement, total	84153	115,488	95,922
Admn sarscov2 vacc 1 dose	90480	120,718	120,511
Residence visit for established patient with high level of medical decision making, per day, if using time, at least 60 minutes	99350	120,944	44,538
Complex chronic care management services for two or more chronic conditions, first 60 minutes of clinical staff time directed by health care professional, per calendar month	99487	123,299	45,228
Prostate cancer screening; prostate specific antigen test (psa)	G0103	126,170	126,170
Professional service for preparation and provision of 1 or more antigens	95165	126,930	1,989
New patient office or other outpatient visit, 30-44 minutes	99203	128,457	128,425
Telephone medical discussion with physician, 21-30 minutes	99443	132,884	82,037
Physician or allowed practitioner re-certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians a	G0179	135,922	71,293
Annual, face-to-face intensive behavioral therapy for cardiovascular disease, individual, 15 minutes	G0446	137,880	137,806
Liver function blood test panel	80076	138,865	85,593
Blood glucose (sugar) test performed by hand-held instrument	82962	140,072	60,704
Transitional care management services for problem of at least moderate complexity	99495	141,555	126,542
Uric acid level, blood	84550	144,795	99,787
Anticoagulant management of patient taking warfarin	93793	150,234	20,560
Complete blood cell count (red cells, white blood cell, platelets), automated test	85027	154,912	116,794
Magnesium level	83735	156,484	99,523
Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit	G0438	157,395	157,395
Iron level	83540	157,526	109,975
Transitional care management services for problem of high complexity	99496	160,899	138,898
Ferritin (blood protein) level	82728	162,360	113,785
Complex chronic care management services for two or more chronic conditions, each additional 60 minutes of clinical staff time directed by health care professional, per calendar month	99489	181,066	26,479
Residence visit for established patient with low level of medical decision making, per day, if using time, at least 30 minutes	99348	186,004	59,647
X-ray of chest, 2 views	71046	187,478	164,040
Initial nursing facility care with moderate level of medical decision making, per day, if using time, at least 35 minutes	99305	190,025	169,132
Ultrasound of heart with color-depicted blood flow, rate, direction and valve function	93306	196,578	188,727
Blood test, clotting time	85610	216,363	40,804
Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional	99211	230,287	113,047
Urine microalbumin (protein) level	82043	231,359	182,652
Telephone medical discussion with physician, 11-20 minutes	99442	237,075	148,229
Test for allergy using allergenic extract	95004	242,184	3,904
Creatinine level to test for kidney function or muscle injury	82570	254,039	197,487
Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes	99310	257,068	96,356
Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and	G0180	259,000	210,789
Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 10 minutes	99307	291,098	77,338
Cyanocobalamin (vitamin b-12) level	82607	291,712	230,241
Urinalysis, manual test	81002	292,385	222,833
Manual urinalysis test with examination using microscope, automated	81001	306,381	236,440
Management using the results of remote vital sign monitoring per calendar month, each additional 20 minutes	99458	342,702	48,746
Annual alcohol misuse screening, 5 to 15 minutes	G0442	357,073	356,993
Established patient office or other outpatient visit, 10-19 minutes	99212	375,763	243,385
Residence visit for established patient with moderate level of medical decision making, per day, if using time, at least 40 minutes	99349	380,625	111,120
Remote monitoring of physiologic parameters, initial supply of devices with daily recordings or programmed alerts transmission, each 30 days	99454	384,895	75,500
Administration of pneumococcal vaccine	G0009	385,623	384,586
Thyroxine (thyroid chemical), free	84439	386,090	270,746
New patient office or other outpatient visit, 45-59 minutes	99204	386,734	386,665
Vitamin d-3 level	82306	388,323	321,444
Initial nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes	99306	391,947	346,657
Critical care, first 30-74 minutes	99291	392,941	209,309
Blood test, basic group of blood chemicals (calcium, total)	80048	399,785	260,336
Automated urinalysis test	81003	412,888	321,816
Management using the results of remote vital sign monitoring per calendar month, first 20 minutes	99457	482,604	94,276
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes	99231	488,305	207,127
Hospital discharge day management, 30 minutes or less	99238	584,001	542,503
Advance care planning, first 30 minutes	99497	733,207	682,808
Chronic care management services for two or more chronic conditions, additional 20 minutes of clinical staff time directed by health care professional, per calendar month	99439	756,006	188,365
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only	93010	764,323	573,507
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	99222	835,382	788,236
Injection of drug or substance under skin or into muscle	96372	877,483	315,154
Annual depression screening, 5 to 15 minutes	G0444	940,107	939,872
Blood test, thyroid stimulating hormone (tsh)	84443	962,969	709,050
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report	93000	1,179,360	1,048,611
Hemoglobin a1c level	83036	1,255,535	792,887
Blood test, lipids (cholesterol and triglycerides)	80061	1,324,142	951,323
Administration of influenza virus vaccine	G0008	1,404,064	1,388,355
Established patient office or other outpatient visit, 40-54 minutes	99215	1,413,085	958,572
Blood test, comprehensive group of blood chemicals	80053	1,447,163	934,798
Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count	85025	1,489,453	954,533
Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 15 minutes	99308	1,878,012	409,300
Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes	99309	1,885,788	487,957
Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month	99490	1,960,307	425,988
Hospital discharge day management, more than 30 minutes	99239	2,277,948	2,164,243
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	99223	2,376,600	2,242,935
Provision of covid-19 test, nonprescription self-administered and self-collected use, fda approved, authorized or cleared, one test count	K1034	3,055,550	193,506
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	G0439	3,829,224	3,829,217
Insertion of needle into vein for collection of blood sample	36415	4,308,223	2,348,814
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	99233	6,017,499	2,437,155
Established patient office or other outpatient visit, 20-29 minutes	99213	6,683,633	3,794,391
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	99232	8,363,448	2,977,441
Established patient office or other outpatient visit, 30-39 minutes	99214	13,638,285	6,758,072

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Sources: Medicare Care Compare (hospitals and schools; Medicare-enrolled clinicians), CMS Medicare Physician & Other Practitioners 2023 (services), Medicare Part D Prescribers 2024 (drugs).