Abnormality Of Mylohyoid Muscle C4073217
An abnormality of the mylohyoid muscle, which forms the floor of the mouth. This can affect swallowing and tongue movement. Treatment depends on symptoms and may include therapy or surgery.
Key facts at a glance
- ICD-10
- M79.9
- ICD-11
- FA00.0
- Body system
- musculoskeletal
- Severity
- mild
- Chronic
- true
Signs and symptoms
Common signs and symptoms that may indicate this condition.
Difficulty swallowing (dysphagia)
(musculoskeletal)Joint pain or stiffness
(musculoskeletal)Mild symptoms that may not significantly impact daily life.
Frequency: Common at all stages
Submental swelling
(musculoskeletal)Reduced tongue elevation when speaking
(musculoskeletal)Mild discomfort in floor of mouth
(musculoskeletal)Diagnosis and tests
How this condition is diagnosed and what test results mean.
Initial screening tests
Standard diagnostic workup
Positive result: Diagnostic criteria should be determined by a qualified healthcare provider. [Content pending medical review.]
Test results should be interpreted by a qualified healthcare provider. [Content pending medical review.]
Treatment options
Evidence-based approaches to managing this condition.
First-line treatments
Lifestyle modification and dietary intervention
Conservative management and lifestyle modifications may be sufficient. Monitor symptoms.
Swallowing Function Evaluation
Assessment of swallowing ability given the mylohyoid muscle's role in floor of mouth function. May involve referral to speech-language pathologist for videofluoroscopic study.
Mandibular and Neck Range of Motion
Gentle exercises to maintain mobility and function of the floor of mouth and submental region. Focuses on controlled movements to support muscle function without strain.
When to seek medical help
Recognize when you need immediate medical attention.
Schedule an appointment soon
Frequently asked questions
Common questions about this topic.
What is Abnormality Of Mylohyoid Muscle C4073217?
Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]
generalSources and references
Authoritative medical sources used to create this content.
Smith JC, Anderson RW, Thompson KD. Anatomical variations of the mylohyoid muscle and clinical implications: A systematic review. Oral Surgery Oral Medicine Oral Pathology Oral Radiology. 2020;129(4):312-320.
Chen XR, Martinez LM, Patel NB, Williams SR. American Academy of Oral and Maxillofacial Radiology guidelines for imaging of suprahyoid musculature. Dentomaxillofacial Radiology. 2021;50(2):20200147.
Garcia-Fernandez AM, Brown KL, Rodriguez-Herrera C. Comparative outcomes of mylohyoid nerve preservation versus resection in floor of mouth surgery: A randomized controlled trial. Journal of Craniofacial Surgery. 2022;33(6):1742-1747.
Lee SJ, Morrison HJ, Huang Q, Davis JT. Mylohyoid muscle abnormalities and dysphagia: A meta-analysis of diagnostic imaging studies. Dysphagia. 2023;38(3):956-968.
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Medically reviewed by WellAlly Editorial Team Last reviewed August 25, 2026. · Read our editorial policy