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ICD-10-CM Codes
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M00-M99
Diseases of the musculoskeletal system and connective tissue
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M40-M43
Deforming dorsopathies
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M43-
Other deforming dorsopathies
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2020 ICD-10-CM Diagnosis Code M43.6
Torticollis
2016 2017 2018 2019 2020 Billable/Specific Code
- M43.6 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
- The 2020 edition of ICD-10-CM M43.6 became effective on October 1, 2019.
- This is the American ICD-10-CM version of M43.6 - other international versions of ICD-10 M43.6 may differ.
Type 1 ExcludesType 1 Excludes Help
A type 1 excludes note is a pure excludes. It means "not coded here". A type 1 excludes note indicates that the code excluded should never be used at the same time as M43.6. A type 1 excludes note is for used for when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
- congenital (sternomastoid) torticollis (
ICD-10-CM Diagnosis Code Q68.0
Congenital deformity of sternocleidomastoid muscle
2016 2017 2018 2019 2020 Billable/Specific Code POA Exempt
Applicable To- Congenital contracture of sternocleidomastoid (muscle)
- Congenital (sternomastoid) torticollis
- Sternomastoid tumor (congenital)
Q68.0) - current injury - see Injury, of spine, by body region
- ocular torticollis (
ICD-10-CM Diagnosis Code R29.891
Ocular torticollis
2016 2017 2018 2019 2020 Billable/Specific Code
Type 1 Excludes- congenital (sternomastoid) torticollis Q68.0
- psychogenic torticollis (F45.8)
- spasmodic torticollis (G24.3)
- torticollis due to birth injury (P15.8)
- torticollis NOS M43.6
R29.891) - psychogenic torticollis (
ICD-10-CM Diagnosis Code F45.8
Other somatoform disorders
2016 2017 2018 2019 2020 Billable/Specific Code
Applicable To- Psychogenic dysmenorrhea
- Psychogenic dysphagia, including 'globus hystericus'
- Psychogenic pruritus
- Psychogenic torticollis
- Somatoform autonomic dysfunction
- Teeth grinding
Type 1 Excludes- sleep related teeth grinding (G47.63)
F45.8) - spasmodic torticollis (
ICD-10-CM Diagnosis Code G24.3
Spasmodic torticollis
2016 2017 2018 2019 2020 Billable/Specific Code
Type 1 Excludes- congenital torticollis (Q68.0)
- hysterical torticollis (F44.4)
- ocular torticollis (R29.891)
- psychogenic torticollis (F45.8)
- torticollis NOS (M43.6)
- traumatic recurrent torticollis (S13.4)
G24.3) - torticollis due to birth injury (
ICD-10-CM Diagnosis Code P15.2
Sternomastoid injury due to birth injury
2016 2017 2018 2019 2020 Billable/Specific Code Code on Newborn Record
P15.2)
The following code(s) above
M43.6 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
- Applicable To annotations, or
- Code Also annotations, or
- Code First annotations, or
- Excludes1 annotations, or
- Excludes2 annotations, or
- Includes annotations, or
- Note annotations, or
- Use Additional annotations
that may be applicable to
M43.6:
Approximate Synonyms
- Neck stiffness
- Sandifer syndrome
- Stiff neck
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.
ICD-10-CM M43.6 is grouped within Diagnostic Related Group(s) (MS-DRG v37.0):
- 551 Medical back problems with mcc
- 552 Medical back problems without mcc
Convert M43.6 to ICD-9-CM
Code History
- 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
- 2017 (effective 10/1/2016): No change
- 2018 (effective 10/1/2017): No change
- 2019 (effective 10/1/2018): No change
- 2020 (effective 10/1/2019): No change
Code annotations containing back-references to M43.6:
ICD-10-CM Codes Adjacent To M43.6
M43.5 Other recurrent vertebral dislocation
M43.5X Other recurrent vertebral dislocation
M43.5X8 …… sacral and sacrococcygeal region
M43.6
Torticollis
M43.8 Other specified deforming dorsopathies
M43.8X Other specified deforming dorsopathies
M43.8X1 …… occipito-atlanto-axial region
M43.8X8 …… sacral and sacrococcygeal region
Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.