---
title: "Vertebral subluxation"
chunk: 2/5
source: "https://en.wikipedia.org/wiki/Vertebral_subluxation"
category: "reference"
tags: "science, encyclopedia"
date_saved: "2026-05-05T03:38:10.932831+00:00"
instance: "kb-cron"
---

The ACC paradigm has been criticized by chiropractic authors:All in all, the ambiguities that permeate the ACC's statements on subluxation render it inadequate as a guide to clinical research... Whether the ACC's subluxation claims have succeeded as a political statement is beyond our concern here. These assertions were published as a priori truths (what many chiropractors have traditionally referred to as "principle"), and are exemplary of scientifically unjustified assertions made in many corners of the profession. It matters not whether unsubstantiated assertions are offered for clinical, political, scientific, educational, marketing or other purposes; when offered without acknowledgment of their tentative character, they amount to dogmatism. We contend that attempts to foster unity (among the schools or in the wider profession) at the expense of scientific integrity is ultimately self-defeating. To be sure, the profession's lack of cultural authority is based in part upon our characteristic disunity. However, attempts to generate unity by adoption of a common dogma can only bring scorn and continued alienation from the wider health care community and the public we all serve.In May 2010 the General Chiropractic Council, the statutory regulatory body for chiropractors in the United Kingdom, issued guidance for chiropractors stating that the chiropractic vertebral subluxation complex "is an historical concept" and "is not supported by any clinical research evidence that would allow claims to be made that it is the cause of disease or health concerns."
The chiropractic vertebral subluxation complex has been a source of controversy since its inception in 1895 due to the lack of empirical evidence for its existence, its metaphysical origins, and claims of its far reaching effects on health and disease. Although some chiropractic associations and colleges support the concept of subluxation, many in the chiropractic profession reject it and shun the use of this term as a diagnosis. In the United States and in Canada the term nonallopathic lesion may be used in place of subluxation.
Other chiropractors consider subluxation as more of an abstract concept rather than a medical condition. Tedd Koren says,

The vertebral subluxation cannot be precisely defined because it is an abstraction, an intellectual construct used by chiropractors, chiropractic researchers, educators and others to explain the success of the chiropractic adjustment.
This is not a unique state of affairs, abstract entities populate many branches of science...
Subluxations, genes, gravity, the ego and life are all heuristic devices, "useful fictions" that are used to explain phenomenon that are far larger than our understanding. We use them as long as they work for us and discard or limit their application when they become unwieldy or unable to account for new observations...
Critics of chiropractic have incorrectly assumed that chiropractic is based on the theory or principle that vertebral subluxations cause "pinched" nerves that cause disease. They have it backwards. Chiropractic is based on the success of the spinal adjustment. The theory attempting to explain the success of the adjustment (nerve impingement, disease, subluxations) followed its clinical discovery.
Examples of such erroneous criticisms based on this straw man argument abound in the medical literature. Some examples: "The teachers, research workers and practitioners of medicine reject the so-called principle on which chiropractic is based and correctly and bluntly label it a fraud and hoax on the human race." "The basis of chiropractic is completely unscientific."  The theory on which chiropractic is based [is false], namely that a "subluxation" of a spinal vertebra presses on a nerve interfering with the passage of energy down that nerve causing disease to organs supplied by that nerve, and that chiropractic "adjustments" can alleviate the pressure thereby treating or preventing such disease. There is no scientific evidence for the validity of this theory."
To be fair, statements by some chiropractors have tended to perpetuate this misunderstanding: "Pressure on nerves causes irritation and tension with deranged functions as a result."

When chiropractors declare that "pinched nerves" "nerve impingement" "spinal fixations" or others mechanisms of action explain how subluxations affect the person and how chiropractic works they are making the same mistake medical critics make – assuming chiropractic is based on theory. Mechanisms and theories are useful tools, but their limitations should always be kept in mind.

=== International Classification of Diseases coding ===
The differences between a medical subluxation and a chiropractic "vertebral subluxation" create confusion and difficulties when it comes to following official ICD-9 and ICD-10 coding. In a 2014 article in Dynamic Chiropractic by a chiropractor who is a certified professional coder, these difficulties were discussed in detail. He noted that the WHO recognizes the differences between the two types of "subluxations", and also pointed out certain difficulties for chiropractors:...the official definition of 739 codes is "nonallopathic lesions, not elsewhere classified.... In other words, 739 is a code that does not describe a subluxation. It does not even say what the patient has; it says that there is no code to describe what the patient has.... [T]he elusive "vertebral subluxation complex" I learned about in school has no place in the ICD-9 code set. All we get is 739, which is a code for conditions that do not have a code.
ICD-9 has never provided a code that truly describes this and differentiates between the chiropractic subluxation and the allopathic subluxation. Chiropractors have been compelled to try to fit a square peg into a round hole for many years.At the time of writing (August 2014) it was still uncertain which codes in the newer ICD-10 would be useful for chiropractors and how they would be interpreted.

=== Components ===
Traditionally there have been five components that form the chiropractic subluxation.

Spinal Kinesiopathology
Neuropathophysiology/Neuropathology
Myopathology
Histopathology
Biochemical changes

=== Diagnosis ===
Historically, the detection of spinal misalignment (subluxations) by the chiropractic profession has relied on X-ray findings and physical examination. At least two of the following four physical signs and/or symptoms must be documented  to qualify for reimbursement :

Pain and tenderness
Asymmetry/misalignment
Range of motion abnormality
Tissue/tone changes

=== Rationale ===