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ICD-9-CM Code specific proportion of prevalence and ambulatory care visits for SPARC.*

ICD-9-CM Code and Condition ‡ Percent of Prevalence Percent of Visits †
727.0Synovitis and tenosynovitis31.323.2
729.1Myalgia and myositis, unspecified22.926.9
715Osteoarthrosis and allied disorders10.96.7
710Diffuse diseases of connective tissue7.26.4
714Rheumatoid arthritis and other inflammatory polyarthropathies5.47.4
287.0Allergic purpura5.36.9
711Arthropathy associated with infections5.26.9
716Other and unspecified arthropathies3.03.0
446Polyarteritis nodosa and allied conditions2.43.4
Remaining SPARC Codes§6.49.2

* ICD-9-CM = International Classification of Diseases, Ninth Revision, Clinical Modification; SPARC = significant pediatric arthritis and other rheumatologic conditions.

† Visit data include 83,000 emergency department visits that were not used to estimate prevalence.

‡ Estimates for 727.0, 729.1, 710, and 714 are based on samples of 42–104 records, but relative standard errors exceed 30%. All the remaining code estimates are based on <30 records.

§ Data not shown individually for codes with estimated proportions below 3% for prevalence or visits. Such codes include 099.3 Reactive arthritis; 136.1 Behcet's syndrome; 274 Gout; 277.3 Amyloidosis; 390–391 Rheumatic fever; 437.4 Cerebral arteritis; 443.0 Raynaud’s syndrome; 447.6 Arteritis, unspecified; 695.2 Erythema nodosum; 696.0 Psoriatic arthropathy; 701.0 Circumscribed scleroderma; 712 Crystal arthropathies; 713 Arthropathy associated with other disorders classified elsewhere; 719.2 Villonodular synovitis; 719.3 Palindromic rheumatism; 720 Ankylosing spondylitis and other inflammatory spondylopathies; and 729.0 Rheumatism, unspecified and fibrositis.

Reference

Sacks JJ, Helmick CG, Luo YH, Ilowite NT, Bowyer S. Prevalence of and annual ambulatory health care visits for pediatric arthritis and other rheumatologic conditions in the United States in 2001–2004. Arthritis Care Res 2007;57(8):1439–1445. abstract

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Synthetic state-specific prevalence estimates of pediatric arthritis, 2001-2004

Children <18 yrs old
N*

ICD-9-CM- based estimates
n (95% CI)†

United States72,969,000294,000 (188,000–400,000)
Alabama1,107,5004,500 (2,900–6,000)
Alaska190,900800 (500–1,000)
Arizona1,498,1006,000 (3,900–8,200)
Arkansas679,8002,700 (1,700–3,700)
California9,436,20038,000 (24,300–51,700)
Colorado1,151,9004,600 (3,000–6,300)
Connecticut854,1003,400 (2,200–4,700)
Delaware194,300800 (500–1,000)
Dist. of Columbia110,300400 (300–600)
Florida3,903,20015,800 (10,000–21,400)
Georgia2,282,6009,200 (5,900–12,500)
Hawaii296,3001,200 (800–1,600)
Idaho371,2001,500 (1,000–2,000)
Illinois3,254,60013,100 (8,300–17,800)
Indiana1,599,4006,400 (4,100–8,800)
Iowa695,7002,800 (1,800–3,800)
Kansas695,8002,800 (1,800–3,800)
Kentucky962,9003,900 (2,500–5,300)
Louisiana1,181,6004,800 (3,000–6,500)
Maine282,9001,100 (700–1,600)
Maryland1,379,0005,600 (3,500–7,600)
Massachusetts1,475,2005,900 (3,800–8,100)
Michigan2,554,60010,300 (6,600–14,000)
Minnesota1,250,4005,000 (3,200–6,900)
Mississippi761,0003,100 (2,000–4,200)
Missouri1,402,4005,700 (3,600–7,700)
Montana216,100900 (600–1,200)
Nebraska440,1001,800 (1,100–2,400)
Nevada577,0002,300 (1,500–3,200)
New Hampshire308,3001,200 (800–1,700)
New Jersey2,129,5008,600 (5,500–11,700)
New Mexico501,3002,000 (1,300–2,700)
New York4,573,00018,400 (11,800–25,100)
North Carolina2,078,1008,400 (5,300–11,400)
North Dakota146,800600 (400–800)
Ohio2,847,60011,500 (7,300–15,600)
Oklahoma875,9003,500 (2,300–4,800)
Oregon852,1003,400 (2,200–4,700)
Pennsylvania2,847,10011,500 (7,300–15,600)
Rhode Island241,6001,000 (600–1,300)
South Carolina1,001,3004,000 (2,600–5,500)
South Dakota195,500800 (500–1,100)
Tennessee1,399,6005,600 (3,600–7,700)
Texas6,171,20024,900 (15,900–33,800)
Utah728,0002,900 (1,900–4,000)
Vermont138,600600 (400–800)
Virginia1,789,1007,200 (4,600–9,800)
Washington1,505,0006,100 (3,900–8,300)
West Virginia390,0001,600 (1,000–2,100)
Wisconsin1,335,5005,400 (3,400–7,300)
Wyoming121,700500 (300–700)

* Estimates based on dividing national ICD-9-CM-based any diagnosis SPARC prevalence by the child population younger than 18 years of age and applying that rate to state-specific populations. All estimates rounded to the nearest 100.

† ICD-9-CM = International Classification of Diseases, Ninth Revision, Clinical Modification; CI = confidence interval.

Reference

Sacks JJ, Helmick CG, Luo YH, Ilowite NT, Bowyer S. Prevalence of and annual ambulatory health care visits for pediatric arthritis and other rheumatologic conditions in the United States in 2001–2004. Arthritis Care Res 2007;57(8):1439–1445. abstract

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