2027 ICD-10-CM Diagnosis Code M62.838Other muscle spasm
ICD-10-CM Codes›M00–M99›M60-M63›M62
- Billable — Valid for Submission
- Not Chronic
M62.838 is a billable ICD-10-CM diagnosis code for other muscle spasm. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 555 through 556. 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 movement
- Bilateral spasm of piriformis muscle
- Emprosthotonus
- Lower limb spasticity
- Muscle spasm of cervical muscle of neck
- Muscle spasm of head and/or neck
- Muscle spasticity of spinal origin
- Muscle spasticity present
- Muscle tension
- Myospasm of masticatory muscle
- Perioral spasm
- Protective muscle spasm
- Smooth muscle spasm
- Spasm of cervical paraspinous muscle
- Spasm of left piriformis muscle
- Spasm of piriformis muscle
- Spasm of right piriformis muscle
- Spasm of skeletal muscle of thorax
- Stress-induced muscle tension
- Upper limb spasticity
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to M62.838: 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.
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.
Spasm (s), spastic, spasticity See Also: condition; R25.2
muscle NEC M62.838
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Clinical InformationClinical
Spasm
an involuntary contraction of a muscle or group of muscles. spasms may involve skeletal muscle or smooth muscle.
Patient EducationClinical
Neuromuscular Disorders
Neuromuscular disorders affect your neuromuscular system. They can cause problems with:
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert M62.838 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About M62.838Overview
What is the ICD-10 code for other muscle spasm?
The ICD-10-CM code for other muscle spasm is M62.838 (sometimes written as M62838). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
Is M62.838 (Muscle spasm) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report other muscle spasm on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
What MS-DRG does M62.838 group to?
When other muscle spasm is the principal diagnosis on an inpatient stay, it groups to MS-DRG 555, 556, with relative weights from 0.8210 to 1.2908 depending on complications. Higher weights mean higher Medicare reimbursement.
Can M62.838 be reported with G72.1?
Not as a rule. The Excludes1 note at M62, which applies to M62.838, 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 M62.838?
Under the General Equivalence Mappings, other muscle spasm converts to ICD-9-CM 728.85 (spasm of muscle). The mapping is approximate, so confirm the match fits the documentation.
