ICD10BillableValid for clinical use

ICD-10 Code M62.5A9: Muscle wasting and atrophy, not elsewhere classified, back, unspecified level

M62.5A9 is a billable ICD-10 diagnosis code used to classify Muscle wasting and atrophy, not elsewhere classified, back, unspecified level in medical records and claims. You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records. ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Diseases of the musculoskeletal system and connective tissue (M00-M99).

Reviewed by HealthAssure Clinical TeamUpdated 26 May 2026

What is this code?

ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Diseases of the musculoskeletal system and connective tissue (M00-M99).

When is it used?

  • May be used when a clinician documents muscle wasting and atrophy, not elsewhere classified, back, unspecified level in a patient's medical record.
  • May appear in hospital records, claims, referrals, and clinical documentation.
  • This code can be used as a clinically usable diagnosis entry in standardized coding workflows.

What it does not mean

  • A code alone does not explain severity, treatment plan, or outcome.
  • A medical code should not be treated as a substitute for a doctor's diagnosis or advice.

Code hierarchy

chapter
13Diseases of the musculoskeletal system and connective tissue (M00-M99)
block
M60-M79Soft tissue disorders
block
M60-M63Disorders of muscles
category
M62Other disorders of muscle
category
M62.5Muscle wasting and atrophy, not elsewhere classified
category
M62.5AMuscle wasting and atrophy, not elsewhere classified, back
currentM62.5A

Where you may see this code

You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records.

Related specialists

Orthopedic SpecialistRheumatologist

Coverage-related procedures and services

HCPCS G0255high
CURRENT PERCEPTION THRESHOLD/SENSORY NERVE CONDUCTION TEST, (SNCT) PER LIMB, ANY NERVE
Source: CMS coverage guidance
HCPCS G0300high
DIRECT SKILLED NURSING SERVICES OF A LICENSED PRACTICAL NURSE (LPN) IN THE HOME HEALTH OR HOSPICE SETTING, EACH 15 MINUTES
Source: CMS coverage guidance
HCPCS G0299high
DIRECT SKILLED NURSING SERVICES OF A REGISTERED NURSE (RN) IN THE HOME HEALTH OR HOSPICE SETTING, EACH 15 MINUTES
Source: CMS coverage guidance
CPT 95905high
MOTOR AND/OR SENSORY NERVE CONDUCTION, USING PRECONFIGURED ELECTRODE ARRAY(S), AMPLITUDE AND LATENCY/VELOCITY STUDY, EACH LIMB, INCLUDES F-WAVE STUDY WHEN PERFORMED, WITH INTERPRETATION AND REPORT
Source: CMS coverage guidance
CPT 95907high
NERVE CONDUCTION STUDIES; 1-2 STUDIES
Source: CMS coverage guidance
CPT 95912high
NERVE CONDUCTION STUDIES; 11-12 STUDIES
Source: CMS coverage guidance

Coding guidelines

Common synonyms

Muscle wasting and atrophy, not elsewhere classified, back, unspecified levelMuscle wasting and atrophy, not elsewhere classified, back

Frequently asked questions

Code details

CodeM62.5A9
SystemICD10
Display nameMuscle wasting and atrophy, not elsewhere classified, back, unspecified level
ChapterDiseases of the musculoskeletal system and connective tissue (M00-M99)
BlockDisorders of muscles

Flags

BillableYes
Valid clinical useYes

Source

SourceICD-10
Version2026-annual
Releaseannual
Year2026

Index terms

Matched terms
Atrophy, atrophic(of)

About this content

This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.

ICD-10 Code M62.5A9 for Muscle wasting and atrophy, not elsewhere classified, back, unspecified level | HealthAssure