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LOINC Code 13917-0: C. immitis Ab CF (CSF) [Titer]

13917-0 is a LOINC code used to identify C. immitis Ab CF (CSF) [Titer] in laboratory and clinical observation data. You may see this code in lab systems, lab reports, EHR exports, interoperability feeds, or other structured clinical data exchanges. LOINC codes identify tests, measurements, observations, survey items, and clinical questions in a standardized way. It is associated with the component Coccidioides immitis Ab. It is commonly used with the system or sample type CSF.

Reviewed by HealthAssure Clinical TeamUpdated 25 May 2026

What is this code?

LOINC codes identify tests, measurements, observations, survey items, and clinical questions in a standardized way. It is associated with the component Coccidioides immitis Ab. It is commonly used with the system or sample type CSF.

When is it used?

  • Used in lab systems, EHRs, and clinical data exchange.
  • May identify a test, observation, survey item, or clinical document request rather than a diagnosis.
  • Status: ACTIVE
  • Order vs observation: Both
  • Method: Comp fix

What it does not mean

  • The code identifies the observation or test, not the actual result.

Key facts

  • Coccidioides immitis Ab [Titer] in Cerebral spinal fluid by Complement fixation
  • Coccidioides immitis Ab
  • ABS; Aby; Antby; Anti; Antibodies; Antibody; Autoantibodies; Autoantibody; B immitis; Blastomycoides immitis; C esteriformis; C immitis; Cerebral spinal fluid; Cerebrospinal Fl; CF; Coccidioides esteriformis; Coccidiomycosis; Coccio; Comp fixation; Compfix; Complement fixation; Dilution factor; Dilution Factor (Titer); G immite; G louisianoideum; G metaeuropea; Geotrichum immite; Glenospora metaeuropea; Glenosporum louisianoideum; ID; Infectious Disease; InfectiousDisease; Microbiology; Neuro; Neurology; P esteriformis; P mazzai; Point in time; Posadasia esteriformis; Pseudococcidioides mazzai; Random; San Joaquin Valley fever; SmQn; Spinal Fl; Spinal Fld; Spinal Flu; Spinal Fluid; T proteolyticum; Titer; Titered; Titre; Trichosporon proteolyticum; Ttr; Valley fever

Where you may see this code

You may see this code in lab systems, lab reports, EHR exports, interoperability feeds, or other structured clinical data exchanges.

Common synonyms

C. immitis Ab CF (CSF) [Titer]Coccidioides immitis Ab [Titer] in Cerebral spinal fluid by Complement fixationC immitis Ab Titr CSF CFCoccidioides immitis AbMICROCoccidioides immitis antibody, Spinal fluidTitr

Frequently asked questions

Code details

Code13917-0
SystemLOINC
Display nameC. immitis Ab CF (CSF) [Titer]
DescriptionCoccidioides immitis Ab
Short nameC immitis Ab Titr CSF CF
ComponentCoccidioides immitis Ab
PropertyTitr
TimingPt
System (specimen)CSF
ScaleSemiQn
MethodComp fix
ClassMICRO
Example unitstiter
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0k
Last changed2.75

Consumer names

Coccidioides immitis antibody, Spinal fluid

Part names

Coccidioides immitis AbTitrPtCSFSemiQnComp fixTiterPoint in time (spot)Cerebral spinal fluidComplement fixation

About this content

This page is prepared by HealthAssure's clinical team using official coding standards from LOINC. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.

LOINC Code 13917-0 | HealthAssure