homeback CURB-65 Pneumonia Severity Score

 

Confusion (abbreviated Mental Test Score ≤8) (1 point)

Urea (BUN >19 mg/dL or 7 mmol/L) (1 point)

Respiratory Rate ≥30 per minute (1 point)

Blood Pressure: diastolic ≤60 or systolic <90 mmHg (1 point)

Age ≥65 years (1 point)

 
Important: Inputs must be complete to perform calculation.

 
Total Criteria Point Count:
 

 
  CURB-65 Score

 
0 to 1 Point:Low risk (1.5% mortality)
2 Points:Intermediate risk (9.2% mortality)
3 to 5 Points:High risk (22% mortality)

 
Notes
  • Risk group assignment and mortality estimation per Lim article.[5]
  • Confusion is defined by an abbreviated Mental Test Score ≤8 or new loss of orientation to person, place, or time.

 
References
  1. Steinberg DI. ACP Journal Club. Review: Risk prediction scales have different strengths and weaknesses for predicting mortality in community-acquired pneumonia. Ann Intern Med. 2011 Apr 19;154(8):JC4-12. doi: 10.1059/0003-4819-154-8-201104190-02012. PubMed ID: 21502638 PubMed Logo
  2. Loke YK, Kwok CS, Niruban A, Myint PK. Value of severity scales in predicting mortality from community-acquired pneumonia: systematic review and meta-analysis. Thorax. 2010 Oct;65(10):884-90. doi: 10.1136/thx.2009.134072. Epub 2010 Aug 20. Review. PubMed ID: 20729235 PubMed Logo
  3. Morris A. ACP Journal Club. Review: CURB65, CRB65, and Pneumonia Severity Index similarly predict mortality in community-acquired pneumonia. Ann Intern Med. 2011 Apr 19;154(8):JC4-13. doi: 10.1059/0003-4819-154-8-201104190-02013. PubMed ID: 21502639 PubMed Logo
  4. Chalmers JD, Singanayagam A, Akram AR, et al. Severity assessment tools for predicting mortality in hospitalised patients with community-acquired pneumonia. Systematic review and meta-analysis. Thorax. 2010 Oct;65(10):878-83. doi: 10.1136/thx.2009.133280. Epub 2010 Aug 20. Review. PubMed ID: 20729231 PubMed Logo
  5. Lim WS, van der Eerden MM, Laing R, et al. Defining community acquired pneumonia severity on presentation to hospital: an international derivation and validation study. Thorax. 2003 May;58(5):377-82. PubMed ID: 12728155 PubMed Logo
  6. Lim WS, Macfarlane JT, Boswell TC, et al. Study of community acquired pneumonia aetiology (SCAPA) in adults admitted to hospital: implications for management guidelines. Thorax. 2001 Apr;56(4):296-301. PubMed ID: 11254821 PubMed Logo

 
Associated Medical Subject Headings [MeSH]
 
        80 and over,   Adolescent,   Adult,   Aged,   Anti-Bacterial Agents,   Bacterial,   Cohort Studies,   Community-Acquired Infections,   Female,   Home Care Services,   Hospitalization,   Humans,   Male,   Middle Aged,   Multivariate Analysis,   Patient Selection,   Pneumonia,   Predictive Value of Tests,   Prognosis,   Prospective Studies,   Regression Analysis,   Severity of Illness Index,   Viral

 
Associated ICD10-CM Codes
 
   J12.9Viral pneumonia, unspecified
   J18.1Lobar pneumonia, unspecified organism
   J13Pneumonia due to Streptococcus pneumoniae
   J12.9Viral pneumonia, unspecified
   J11.00Influenza due to unidentified influenza virus with unspecified type of pneumonia
   J15.9Unspecified bacterial pneumonia
   J18.0Bronchopneumonia, unspecified organism

 
Associated ICD9-CM Codes
 
   485Bronchopneumonia org nos
   482.9Bacterial pneumonia nos
   487.0Influenza with pneumonia
   481Pneumococcal pneumonia
   480.9Viral pneumonia nos
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