M79.3 Panniculitis, unspecified

Billable ICD-10-CM code, FY2026.

Excludes1 (never code together)

• lupus panniculitis (L93.2)
• neck and back panniculitis (M54.0-)
• relapsing [Weber-Christian] panniculitis (M35.6)

Applies from M79 Other and unspecified soft tissue disorders, not elsewhere classified

Excludes1 (never code together)

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

MS-DRG index

Defines the logic of DRG(s) 606-607 in MDC 09.

Approximate ICD-9-CM (GEMs)

• 729.30 Panniculitis, unspecified site (approximate)

Code annotations containing back-references to M79.3

Back-references to M79.3

• Type 1 Excludes: L95 Vasculitis limited to skin, not elsewhere classified ("panniculitis NOS (M79.3)")
• Type 1 Excludes: M35.6 Relapsing panniculitis [Weber-Christian] ("panniculitis NOS (M79.3-)")
• Type 1 Excludes: M54.0 Panniculitis affecting regions of neck and back ("panniculitis NOS (M79.3)")

Diagnosis Index entries for M79.3

• Lipodermatosclerosis
• Panniculitis (nodular) (nonsuppurative)

Nearby codes

• M79.10 Myalgia, unspecified site
• M79.11 Myalgia of mastication muscle
• M79.12 Myalgia of auxiliary muscles, head and neck
• M79.18 Myalgia, other site
• M79.2 Neuralgia and neuritis, unspecified
• M79.3 Panniculitis, unspecified (this code)
• M79.4 Hypertrophy of (infrapatellar) fat pad
• M79.5 Residual foreign body in soft tissue
• M79.6 Pain in limb, hand, foot, fingers and toes
• M79.60 Pain in limb, unspecified
• M79.601 Pain in right arm