NHSN Healthcare Associated Infection (HAI) Reports
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This page is part of the Healthcare Associated Infection Implementation Guide (v2.1.0: STU2) based on FHIR R4. This is the current published version in its permanent home (it will always be available at this URL). For a full list of available versions, see the Directory of published versions

CodeSystem: NHSN Surveillance System Codes

Official URL: https://www.cdc.gov/nhsn/cdaportal/terminology/codesystem/cdcnhsn.html Version: 2020-11
Active as of 2023-09-06 Computable Name: CDCNHSN
Other Identifiers: id: urn:oid:2.16.840.1.113883.6.277

A fragment of the set of healthcare surveillance vocabulary concepts and associated identifiers intended solely for data submissions to the National Healthcare Safety Network (NHSN). Other uses are not recommended.

The CDCNHSN code system is highly specialized to meet the needs of NHSN surveillance reporting, is undergoing changes, and is not recommended for creating value sets to be used outside of NHSN.

This Code system is referenced in the content logical definition of the following value sets:

This case-sensitive code system https://www.cdc.gov/nhsn/cdaportal/terminology/codesystem/cdcnhsn.html provides a fragment that includes following codes:

CodeDisplay
1601-4 Breast abscess or mastitis
1602-2 Myocarditis or pericarditis
1603-0 Clinical sepsis
1604-8 Deep incisional primary surgical site infection (SSI)
1605-5 Deep incisional secondary surgical site infection (SSI)
1606-3 Vertebral disc space infection
1607-1 Ear or mastoid infection (otitis externa, otitis media, otitis interna, mastoiditis)
1608-9 Eye infection, other than conjunctivitis
1609-7 Gastrointestinal tract infection (esophagus, stomach, small and large bowel, and rectum) excluding gastroenteritis and appendicitis
1610-5 Intraabdominal infection, not specified elsewhere including gallbladder, bile ducts, liver (excluding viral hepatitis), spleen, pancreas, peritoneum, subphrenic or subdiaphragmatic space, or other intraabdominal tissue or area not specified elsewhere
1611-3 Intracranial infection (brain abscess, subdural or epidural infection, encephalitis)
1612-1 Joint or bursa infection
1613-9 Laboratory-confirmed bloodstream infection
1614-7 Other infections of lower respiratory tract, other than pneumonia
1615-4 Meningitis or ventriculitis
1616-2 Oral cavity infection (mouth, tongue, or gums)
1617-0 Other infections of the male or female reproductive tract (epididymis, testes, prostate, vagina, ovaries, uterus, or other deep pelvic tissues, excluding endometritis or vaginal cuff infections)
1618-8 Other infections of the urinary tract (kidney, ureter, bladder, urethra, or tissue surrounding the retroperitoneal or perinephric space)
1619-6 Spinal abscess without meningitis
1620-4 Superficial incisional primary surgical site infection (SSI)
1621-2 Superficial incisional secondary surgical site infection (SSI)
1622-0 Upper respiratory tract infection, pharyngitis, laryngitis, epiglottitis
1623-8 Arterial or venous infection
1624-6 Vaginal cuff infection
1625-3 Symptomatic UTI (SUTI)
1626-1 Pneumonia 1 (PNU1)
1631-1 Pneumonia 2 (PNU2)
1632-9 Pneumonia 3 (PNU3)
1640-2 Organ/space
1671-7 Bronchitis or tracheitis
1672-5 Burn infection
1673-3 Decubitus ulcer infection
1674-1 Disseminated infection
1675-8 Infant pustulosis
1676-6 Newborn circumcision infection
1677-4 Soft tissue, muscle, lymph node, or salivary gland infection
1970-3 Periprosthetic joint infection
2343-4 Ventilator-associated condition (VAC)
2344-2 Infection-related ventilator-associated complication (IVAC)
2345-0 Possible ventilator-associated pneumonia (PVAP)
2402-6 Asymptomatic bacteremic UTI (ABUTI)
3066-8 Neonatal Laboratory Confirmed Bloodstream Infection 1 (NLCBI 1)
3067-6 Neonatal Laboratory Confirmed Bloodstream Infection 2 (NLCBI 2)
3068-4 Neonatal Laboratory Confirmed Meningitis 1 (NLCM 1)
3069-2 Neonatal Laboratory Confirmed Meningitis 2 (NLCM 2)
1901-8 Not cultured
1902-6 Blood culture not done or no organisms detected in blood
1903-4 New onset/change in sputum
1904-2 New onset/worsening cough, dyspnea, tachypnea
1905-9 Other evidence of infection found
1906-7 Other signs and symptoms
1907-5 New onset or change in sputum, increased secretions or increased suctioning
1908-3 Bradycardia or tachycardia
1909-1 Occult or gross blood in stools (with no rectal fissure)
1920-8 Localized swelling
1921-6 Rales or bronchial breath sounds
1922-4 Wheezing, rales or rhonchi
1923-3 Greater than or equal to 5% bronchoalveolar lavage cells with bacteria
1924-0 Imaging test evidence of infection
1925-7 New or progressive and persistent infiltrate
1926-5 Pneumatoceles (in <=1 year old)
1927-3 One positive culture with >=100,000 cfu/ml with no more than 2 species of microorganisms
1928-1 Positive dipstick for leukocyte esterase or nitrate
1929-9 Greater than or equal to 2 positive urine cultures with >=100 cfu/ml of same uropathogen from non-voided specimen
1930-7 One positive culture with <=100,000 cfu/ml of a single uropathogen in patient being treated with an effective antimicrobial agent for UTI
1931-5 Greater than or equal to 2 positive urine cultures with >=100,000 cfu/ml with no more than 2 organisms
1934-9 Positive detection of viral antigen or antibody
1935-6 Fourfold rise in paired sera for pathogen
1936-4 Positive culture or microimmunofluorescence of Legionella species
1937-2 Legionella pneumophila serogroup 1 antigens in urine
1938-0 Fourfold rise in Legionella pneumophila antibody titer
1939-8 Matching positive blood and sputum cultures with Candida species
1940-6 Fungi or Pneumocystis carinii from lower respiratory tract specimen
1941-4 Other positive laboratory tests
1942-2 More than 15 colonies cultured from intravascular cannula tip using semi-quantitative culture method
1943-0 Positive Gram stain when culture is negative or not done
1944-8 Common commensal from >=2 blood cultures
1946-3 Organism(s) identified from pleural fluid
1947-1 Positive quantitative culture from lower respiratory tract (LRT) specimen
1948-9 Positive culture of virus or Chlamydia
1949-7 Positive PCR for Chlamydia or Mycoplasma
1950-5 Positive microimmunofluorescence test for Chlamydia
1951-3 Recognized pathogen from one or more blood cultures
1952-1 Positive culture
1953-9 Positive culture of pathogen
1954-7 Positive culture of skin contaminant
1955-4 Positive blood culture
1956-2 Histopathologic exam with abscess formation or lung parenchyma invasion by fungal hyphae
1957-0 Acute onset of diarrhea (liquid stools for >12 hours)
1958-8 Worsening gas exchange
1959-6 Apnea, tachypnea, nasal flaring with retraction of chest wall or grunting
1960-4 Pain or tenderness
1962-0 Physician institutes appropriate antimicrobial therapy
1963-8 Physician diagnosis of this event type
1964-6 Allogeneic hematopoietic stem cell transplant (allo-SCT) with grade >=3 gastrointestinal graft-versus-host disease (GI GVHD)
1965-3 Allogeneic hematopoietic stem cell transplant (allo-SCT) with diarrhea
1966-1 Positive culture from >=2 separate tissue or fluid samples from affected joint
1967-9 Incision deliberately opened or drained
1968-7 Sinus tract
1971-1 Acute pain, swelling, or tenderness of testes, epididymis, or prostate
1972-9 Urine not tested for white blood cells
2320-0 Wound (not related to vascular access) with pus or increased redness
2346-5 Daily minimum FiO2 increase >=0.20 (20 points) for >=2 days
2347-3 Daily minimum PEEP increase >=3 cm H2O for >=2 days
2348-1 Temperature >38°C or <36°C
2349-9 White blood cell count >=12,000 or <=4,000 cells/mm3
2350-2 A new antimicrobial agent(s) is started, and is continued for >=4 days
2351-1 Criterion 1: positive culture from endotracheal aspirate without purulent respiratory secretions
2352-5 Criterion 1: positive culture from bronchoalveolar lavage without purulent respiratory secretions
2353-3 Criterion 1: positive culture from lung tissue without purulent respiratory secretions
2354-1 Criterion 1: positive culture from protected specimen brush without purulent respiratory secretions
2355-9 Criterion 2: purulent respiratory secretions plus organism(s)
2356-4 Criterion 2: organisms from sputum culture with purulent respiratory secretions
2357-2 Criterion 2: organisms from endotracheal aspirate culture with purulent respiratory secretions
2358-0 Criterion 2: organisms from bronchoalveolar lavage culture with purulent respiratory secretions
2359-8 Criterion 2: organisms from lung tissue culture with purulent respiratory secretions
2360-1 Criterion 2: organisms from protected specimen brush culture with purulent respiratory secretions
2361-0 Criterion 3: positive test for organism(s) identified from pleural fluid
2362-4 Criterion 3: positive test for lung histopathology
2363-2 Criterion 3: positive diagnostic test for Legionella species
2364-0 Criterion 3: positive diagnostic test for selected viral pathogens
2403-4 One positive culture with >=1,000 cfu/ml and <100,000 cfu/ml with no more than 2 species of microorganisms
2513-0 Bilateral infiltrates on chest x-ray
2514-8 Diffuse hemorrhage
2515-5 Nausea/vomiting
2516-3 Criterion not otherwise specified
2517-1 Pain not otherwise specified
2518-9 Rash not otherwise specified
3070-0 Common commensal from blood specimen(s) and antibiotics for >=5 days
3071-8 Recognized pathogen from cerebrospinal fluid specimen
3072-6 Common commensal from cerebrospinal fluid specimen and antibiotics for >=5 days