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M79

M79: Other and unspecified soft tissue disorders, not elsewhere classified

Non-billable headerICD-10-CM

M79 is a non-billable header ICD-10-CM code for other and unspecified soft tissue disorders, not elsewhere classified. It cannot be billed on its own: choose one of the more specific child codes below.

Excludes1: never code together

These conditions cannot occur together. Billing both on the same encounter is a denial.

  • psychogenic rheumatism (F45.8)
  • soft tissue pain, psychogenic (F45.41)

Other codes that can never be billed with M79

Their own Excludes1 notes name this code, so the conflict is not listed above.

  • G54Nerve root and plexus disorders
  • Z03.82Encounter for observation for suspected foreign body ruled out
  • L95Vasculitis limited to skin, not elsewhere classified
  • M35.6Relapsing panniculitis [Weber-Christian]
  • M54.0Panniculitis affecting regions of neck and back
  • M54.1Radiculopathy
  • M62Other disorders of muscle
  • M62.2Nontraumatic ischemic infarction of muscle

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Code history

Unchanged in every release from FY2024 to FY2027.

Code to one of these instead M79

11 child codes. Green means billable.

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.