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ICD Code: 493. Asthma



ICD Code: 493. Article Review
Title: "Hospital Inpatient Profiles." National Hospital Discharge Survey 1999; Timely Data Resources, Inc.; www.tdrdata.com
      INPATIENT HOSPITALIZATIONS (1999): According to the 1999 National Hospital Discharge Survey, there were 1,046,949 inpatient discharges for which ICD-9 Code 493.9 (asthma, unspecified) was listed among all the diagnoses for that hospitalization, including 368,215 discharges for which it was the primary diagnosis listed (average length of stay, 3.0 days); for 124,794 discharges it was the only diagnosis listed.
      CONCOMITANT DIAGNOSES: During hospitalizations for which ICD-9 Code 493.9 was listed as the primary diagnosis, the six most frequent concomitant diagnoses were reported as follows: ICD-9 Code 401.9 (hypertension), 45,791 discharges; ICD-9 Code 486. (pneumonia, organism unspecified), 21,431 discharges; ICD-9 Code 465.9 (acute upper respiratory infections of unspecified site), 19,515 discharges; ICD-9 Code 382.9 (otitis media, unspecified), 16,599 discharges; ICD-9 Code 530.81 (esophageal reflux), 14,672 discharges; ICD-9 Code 250.00 (type 2 noninsulin-dependent diabetes mellitus without mention of complications), 14,045 discharges.
      During hospitalizations for which ICD-9 Code 493.9 was listed as being among all the diagnoses (whether or not it was the primary diagnosis), the six most frequent concomitant diagnoses were reported as follows: ICD-9 Code 401.9 (hypertension), 200,372 discharges; ICD-9 Code 486. (pneumonia, organism unspecified), 115,040 discharges; ICD-9 Code 250.00 (type 2 noninsulin-dependent diabetes mellitus without mention of complications), 68,698 discharges; ICD-9 Code 428.0 (congestive heart failure; right heart failure), 56,841 discharges; ICD-9 Code 530.81 (esophageal reflux), 56,013 discharges; ICD-9 Code 305.1 (tobacco use disorder; smoking), 50,080 discharges.
      CONCOMITANT PROCEDURES: During hospitalizations for which ICD-9 Code 493.9 was listed as the primary diagnosis, the six most frequent concomitant procedures were reported as follows: ICD-9 Code 93.94 (nebulizer therapy), 36,502 discharges; ICD-9 Code 93.96 (other oxygen enrichment), 12,047 discharges; ICD-9 Code 99.23 (injection of steroid), 8044 discharges; ICD-9 Code 99.21 (injection of antibiotic), 6012 discharges; ICD-9 Code 93.99 (other respiratory procedures), 5146 discharges; ICD-9 Code 96.71 (continuous mechanical ventilation less than 96 hours), 4948 discharges.
      During hospitalizations for which ICD-9 Code 493.9 was listed as being among all the diagnoses (whether or not it was the primary diagnosis), the six most frequent concomitant procedures were reported as follows: ICD-9 Code 93.94 (nebulizer therapy), 55,058 discharges; ICD-9 Code 93.96 (other oxygen enrichment), 19,811 discharges; ICD-9 Code 99.21 (injection of antibiotic), 17,804 discharges; ICD-9 Code 37.22 (left heart cardiac catheterization), 15,232 discharges; ICD-9 Code 88.56 (coronary arteriography, two catheters), 14,172 discharges; ICD-9 Code 88.72 (diagnostic ultrasound of heart; echocardiography), 13,175 discharges.
      GENDER AND AGE: For inpatient discharges listing ICD-9 Code 493.9 as the primary diagnosis, the distribution according to gender was 39.2% male and 60.8% female, and the distribution according to age was reported as follows: ages 1 to 9 years, 35.7%; ages 10 to 19 years, 11.1%; ages 20 to 29 years, 8.7%; ages 30 to 39 years, 10.5%; ages 40 to 49 years, 12.1%; ages 50 to 59 years, 7.1%; ages 60 to 69 years, 6.0%; ages 70 to 79 years, 5.0%; ages 80 and over, 3.8%.
      DISCHARGE STATUS: For inpatient discharges listing ICD-9 Code 493.9 as the primary diagnosis, the distribution according to discharge status was reported as follows: home, 93.5%; skilled nursing facility, 1.7%; intermediate care facility, 0.7%; died in hospital, 0.1%; other, 4.0%.
      PAYMENT SOURCE: For inpatient discharges listing ICD-9 Code 493.9 as the primary diagnosis, the distribution according to principal expected source of payment was reported as follows: no charge, 0.9%; worker's compensation, 0.0%; Medicare, 14.1%; Medicaid, 25.0%; other government payment, 1.5%; Blue Cross, 7.1%; other private/commercial insurance, 38.5%; self pay, 8.4%; other source, 4.4%.

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