2027 ICD-10-CM Diagnosis Code M62.89Other specified disorders of muscle
ICD-10-CM Codes›M00–M99›M60-M63›M62
- Billable — Valid for Submission
- Not Chronic
M62.89 is a billable ICD-10-CM diagnosis code for other specified disorders of muscle. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 557 through 558. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Muscle disorders.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Abnormal hyperplasia of type I muscle fiber
- Abnormality of muscle of chest wall
- Abnormally decreased muscle contraction
- Acquired hypotonia
- Appendicular hypotonia
- Asymmetric muscle tone
- Autosomal dominant intellectual disability, craniofacial dysmorphism, macrocephaly, hypotonia syndrome due to H1-4 mutation
- Bilateral hypertrophy of masseter muscles
- Biopsy result abnormal
- Central muscle fatigue
- Congenital radioulnar synostosis
- Débré-Sémélaigne's syndrome
- Degenerative disorder of muscle
- Deposition in skeletal muscle
- Enlargement of skeletal muscle
- Episodic flaccidity of muscle
- Episodic hypotonia
- Exercise induced muscle fatigue
- Finding of appearance of skeletal muscle
- Finding of size of skeletal muscle
- Flaccidity of muscle
- Flaccidity of muscle of lower limb
- Flaccidity of muscle of upper limb
- Fluctuating muscle tone
- Generalized hypertrophy of skeletal muscle
- Generalized myokymia
- Global developmental delay, visual anomalies, progressive cerebellar atrophy, truncal hypotonia syndrome
- Hemihypertrophy of skeletal muscle
- Hemorrhage of muscle
- Hereditary continuous muscle fiber activity
- Hernia of muscle through fascia of lower leg
- Herniation of lumbar muscles
- High frequency muscle fatigue
- Hypertrophic cardiomyopathy with hypotonia and lactic acidosis syndrome
- Hypertrophic mitochondrial cardiomyopathy
- Hypertrophy of erector spinae muscle
- Hypertrophy of left masseter muscle
- Hypertrophy of masseter muscle
- Hypertrophy of muscle fiber
- Hypertrophy of muscle of calf
- Hypertrophy of muscle of forearm
- Hypertrophy of muscle of left lower limb
- Hypertrophy of muscle of left upper limb
- Hypertrophy of muscle of lower limb
- Hypertrophy of muscle of neck
- Hypertrophy of muscle of right lower limb
- Hypertrophy of muscle of right upper limb
- Hypertrophy of muscle of shoulder joint
- Hypertrophy of muscle of thigh
- Hypertrophy of muscle of upper arm
- Hypertrophy of muscle of upper limb
- Hypertrophy of muscles of mastication
- Hypertrophy of right masseter muscle
- Hypotonia of axial muscles occurring in infancy
- Hypotonia of muscle of face
- Hypotonia of muscle of upper limb
- Hypotonia of muscles of mouth region
- Inappropriate firing of muscle
- Incomplete closure of velopharyngeal apparatus due to anatomical abnormality
- Increased muscle tone
- Increased muscle tone - left side more than right side
- Increased muscle tone - right side more than left side
- Intellectual disability, macrocephaly, hypotonia, behavioral abnormalities syndrome
- Lethal pontocerebellar hypoplasia, hypotonia, respiratory insufficiency syndrome
- Low frequency muscle fatigue
- Microcephaly, intellectual disability, sensorineural hearing loss, epilepsy, abnormal muscle tone syndrome
- Muscle asynchronous firing potential
- Muscle fatigue
- Muscle fibrillation
- Muscle irritability
- Muscle power unequal
- Muscular steatosis
- Myofibrosis
- Myokymia, hyperhidrosis, impaired muscle relaxation syndrome
- Myomalacia
- Myotonia
- Myotonia acquisita
- Myotonia due to cold exposure
- Myotonia of muscle of face
- Myotonia of muscle of jaw
- Myotonia of muscle of lower limb
- Myotonia of muscle of upper limb
- Neonatal hypotonia
- Neonatal muscle tone disorder
- Neonatal neuromuscular disorder
- Neurodevelopmental delay, hypotonia, cerebellar ataxia, cardiac conduction defects syndrome
- Nodule in muscle
- Peripheral muscle fatigue
- Progressive visual impairment
- Protective splinting of masticatory muscles
- Quadratus lumborum syndrome
- Radioulnar synostosis with developmental delay and hypotonia syndrome
- Reduction of bulk of skeletal muscle
- Reinnervation
- Respiratory insufficiency syndrome of newborn
- Severe hypertrophy of skeletal muscle
- Skeletal muscle hypertrophy
- Skeletal muscle power problem
- Skeletal muscle problem
- Spontaneous EMG activity
- Structural abnormality of abdominal wall muscle
- Structural abnormality of hyoglossus muscle
- Structural abnormality of muscle fiber
- Structural abnormality of muscle of neck
- Structural abnormality of muscle of pelvis
- Structural abnormality of muscle of shoulder
- Structural abnormality of muscle of soft palate
- Structural abnormality of pectoral muscle
- Subgaleal hemorrhage
- X-linked intellectual disability and hypotonia with facial dysmorphism and aggressive behavior syndrome
- X-linked intellectual disability, hypotonia, movement disorder syndrome
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to M62.89: its own notes plus those printed at M62.8, M62, block M60-M63, and Chapter 13. A note printed at a category, block or chapter applies to every code under it.
Applicable To
Conditions this code is used for: synonyms of the title or, for "other specified" codes, the conditions assigned to it. The list is not exhaustive.
- Muscle (sheath) hernia
Excludes1
Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.
Excludes2
Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.
- nontraumatic hematoma of muscle (M79.81)
- arthropathic psoriasis (L40.5-)
- certain conditions originating in the perinatal period (P04-P96)
- certain infectious and parasitic diseases (A00-B99)
- compartment syndrome (traumatic) (T79.A-)
- complications of pregnancy, childbirth and the puerperium (O00-O9A)
- congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
- endocrine, nutritional and metabolic diseases (E00-E88)
- injury, poisoning and certain other consequences of external causes (S00-T88)
- neoplasms (C00-D49)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
Notes
General instructions on how these codes are used.
- Use an external cause code following the code for the musculoskeletal condition, if applicable, to identify the cause of the musculoskeletal condition
Source: CMS ICD-10-CM Tabular List. How to read instructional notes.
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
Amyotonia M62.89
Cicatrix (adherent) (contracted) (painful) (vicious) See Also: Scar; L90.5
muscle M62.89
muscle (acquired) M62.89
Disease, diseased See Also: Syndrome;
fascia NEC See Also: Disorder, muscle;
specified NEC M62.89
Disorder (of) See Also: Disease;
specified type NEC M62.89
muscular M62.89
Hernia, hernial (acquired) (recurrent) K46.9
fascia M62.89
muscle (sheath) M62.89
muscle M62.89
Myofibrosis M62.89
Myomalacia M62.89
Scar, scarring See Also: Cicatrix; L90.5
muscle M62.89
Talma's disease M62.89
fascia (lata) M62.89
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Clinical InformationClinical
Myotonia
prolonged failure of muscle relaxation after contraction. this may occur after voluntary contractions, muscle percussion, or electrical stimulation of the muscle. myotonia is a characteristic feature of myotonic disorders.
Patient EducationClinical
Muscle Disorders
Your muscles help you move and help your body work. Different types of muscles have different jobs. There are many problems that can affect muscles. Muscle disorders can cause weakness, pain or even paralysis.
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert M62.89 to ICD-9-CMHistory
Code HistoryHistory
Questions About M62.89Overview
What is the ICD-10 code for other specified disorders of muscle?
The ICD-10-CM code for other specified disorders of muscle is M62.89 (sometimes written as M6289). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
Is M62.89 (Other specified disorders of muscle) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report other specified disorders of muscle on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
What MS-DRG does M62.89 group to?
When other specified disorders of muscle is the principal diagnosis on an inpatient stay, it groups to MS-DRG 557, 558, with relative weights from 0.8873 to 1.4883 depending on complications. Higher weights mean higher Medicare reimbursement.
Can M62.89 be reported with G72.1?
Not as a rule. The Excludes1 note at M62, which applies to M62.89, lists "alcoholic myopathy (G72.1)". An Excludes1 note means the excluded code is never reported together with this one; the only exception is when the two conditions are unrelated to each other (Official Guidelines, Section I.A.12.a).
What is the ICD-9 equivalent of M62.89?
Under the General Equivalence Mappings, other specified disorders of muscle converts to ICD-9-CM 728.3 (muscle disorders NEC) and 728.89 (muscle/ligament dis NEC). The mapping is approximate, so confirm the match fits the documentation.
