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ICD-10/M54.00

M54.00 ICD-10-CM Code: Panniculitis affecting regions of neck and back, site unspecified

M54.00 is the authoritative medical code for Panniculitis affecting regions of neck and back, site unspecified. This classification is used in medical billing and clinical recording to specify the clinical criteria for panniculitis affecting regions of neck and back, site unspecified (ICD-10-CM M54.00), ensuring healthcare documentation aligns with current federal coding standards.

Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.

Inpatient Payment Groups (MS-DRG)

MS-DRGs this diagnosis helps define, as principal or secondary, per the CMS ICD-10-CM/PCS MS-DRG Definitions Manual v43.0 (FY2026), Appendix B.

  • MS-DRG 606 — MINOR SKIN DISORDERS WITH MCC (MDC 09)
  • MS-DRG 607 — MINOR SKIN DISORDERS WITHOUT MCC (MDC 09)

A diagnosis appearing in a group's logic does not by itself determine the DRG assigned to a stay; the grouper uses the full claim.

Code Set: Valid FY2026 and FY2027. FY2026 took effect October 1, 2025.

Official Registry Overview & Definition

Panniculitis affecting regions of neck and back, site unspecified is a billable ICD-10-CM diagnosis code (M54.00). Excludes1 (not coded here): lupus panniculitis (L93.2); panniculitis NOS (M79.3); relapsing [Weber-Christian] panniculitis (M35.6); psychogenic dorsalgia (F45.41); current injury - see injury of spine by body region; discitis NOS (M46.4-).

Official Tabular Instructional Notes

Sequencing, inclusion, and exclusion notes published for M54.00 in the official ICD-10-CM tabular list.

Excludes1 — Not Coded Here

Conditions that can never be reported with this code; the two are mutually exclusive.

  • lupus panniculitis (L93.2)
  • panniculitis NOS (M79.3)
  • relapsing [Weber-Christian] panniculitis (M35.6)
  • psychogenic dorsalgia (F45.41)
  • current injury - see injury of spine by body region
  • discitis NOS (M46.4-)

Frequently Asked Questions (FAQ) & Clinical Guidance

What can't be coded together with M54.00?

Per official ICD-10-CM Excludes1 instructions, M54.00 must not be reported together with: lupus panniculitis (L93.2); panniculitis NOS (M79.3); relapsing [Weber-Christian] panniculitis (M35.6); psychogenic dorsalgia (F45.41).

Nearest Codes in This Family

Official ICD-10-CM classifications closest to M54.00 in its code family, with their registry titles.

  • M54 — Dorsalgia
  • M54.0 — Panniculitis affecting regions of neck and back
  • M54.01 — Panniculitis affecting regions of neck and back, occipito-atlanto-axial region
  • M54.02 — Panniculitis affecting regions of neck and back, cervical region
  • M54.03 — Panniculitis affecting regions of neck and back, cervicothoracic region
  • M54.04 — Panniculitis affecting regions of neck and back, thoracic region
  • M54.05 — Panniculitis affecting regions of neck and back, thoracolumbar region
  • M54.06 — Panniculitis affecting regions of neck and back, lumbar region
  • M54.07 — Panniculitis affecting regions of neck and back, lumbosacral region
  • M54.08 — Panniculitis affecting regions of neck and back, sacral and sacrococcygeal region

View all codes in the M54 family

Indexed Clinical Terms (1)

Clinical term phrases from the official ICD-10-CM Index to Diseases and Injuries that map to this code.

  • Panniculitis (nodular) (nonsuppurative), back