Specific code icon 2014 ICD-10-CM Diagnosis Code M43.6


  • M43.6 is a billable ICD-10-CM code that can be used to specify a diagnosis.
  • On October 1, 2015 ICD-10-CM will replace ICD-9-CM in the United States, therefore, M43.6 and all other ICD-10-CM codes should only be used for training or planning purposes until then.
Clinical Information
  • A symptom, not a disease, of a twisted neck. In most instances, the head is tipped toward one side and the chin rotated toward the other. The involuntary muscle contractions in the neck region of patients with torticollis can be due to congenital defects, trauma, inflammation, tumors, and neurological or other factors.
  • Contracted state of the cervical muscles, producing twisting of the neck and an unnatural position of the head.
Description Synonyms
  • Neck stiffness
  • Sandifer syndrome
  • Stiff neck
  • Stiffness of neck
Type 1 Excludes
  • congenital (sternomastoid) torticollis (Q68.0)
  • current injury - see Injury, of spine, by body region
  • ocular torticollis (R29.891)
  • psychogenic torticollis (F45.8)
  • spasmodic torticollis (G24.3)
  • torticollis due to birth injury (P15.2)
Mortality Data
  • Between 1999-2007 there were 12 deaths in the United States where ICD-10 M43.6 was indicated as the underlying cause of death [source: cdc.govlink to cdc.gov]
  • ICD-10 M43.6 as underlying cause of death data broken down by: gender, age, race, year
ICD-10-CM M43.6 is grouped within Diagnostic Related Group(s) (MS-DRG v30.0):
  • 551 Medical back problems with mcc
  • 552 Medical back problems without mcc
Convert ICD-10-CM M43.6 to ICD-9-CM
The following ICD-10-CM Index entries contain back-references to ICD-10-CM M43.6: