ICD-10-CM 2027
ICD-10 code for back panniculitis
From the official ICD-10-CM alphabetic index entry “Panniculitis (nodular) (nonsuppurative) › back”. Page updated September 29, 2026.
About coding back panniculitis
The ICD-10-CM code for back panniculitis is M54.00 (Panniculitis affecting regions of neck and back, site unspecified). The official index lists 9 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on M54.00.
Within M54.0, choose M54.00 (site unspecified) only when documentation doesn't support a more specific option: occipito-atlanto-axial region (M54.01), cervical region (M54.02), cervicothoracic region (M54.03), thoracic region (M54.04), thoracolumbar region (M54.05), lumbar region (M54.06), lumbosacral region (M54.07), sacral and sacrococcygeal region (M54.08) and 1 more.
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 606 (Minor Skin Disorders with MCC, relative weight 1.5728) and DRG 607 (Minor Skin Disorders without MCC, relative weight 0.8772), in MDC 09 (Diseases and Disorders of the Skin, Subcutaneous Tissue and Breast), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
More specific back panniculitis codes (official index)
- cervical region M54.02 — Panniculitis affecting regions of neck and back, cervical region
- cervicothoracic region M54.03 — Panniculitis affecting regions of neck and back, cervicothoracic region
- lumbar region M54.06 — Panniculitis affecting regions of neck and back, lumbar region
- lumbosacral region M54.07 — Panniculitis affecting regions of neck and back, lumbosacral region
- multiple sites M54.09 — Panniculitis affecting regions, neck and back, multiple sites in spine
- occipito-atlanto-axial region M54.01 — Panniculitis affecting regions of neck and back, occipito-atlanto-axial region
- sacrococcygeal region M54.08 — Panniculitis affecting regions of neck and back, sacral and sacrococcygeal region
- thoracic region M54.04 — Panniculitis affecting regions of neck and back, thoracic region
- thoracolumbar region M54.05 — Panniculitis affecting regions of neck and back, thoracolumbar region
Common questions about back panniculitis ICD-10 codes
What is the ICD-10 code for back panniculitis?
- M54.00 — Panniculitis affecting regions of neck and back, site unspecified. More specific codes apply when the documentation supports them: M54.02, M54.03, M54.06, M54.07 and others below.
What is the ICD-10 code for cervical region back panniculitis?
- M54.02 — Panniculitis affecting regions of neck and back, cervical region.
What is the ICD-10 code for cervicothoracic region back panniculitis?
- M54.03 — Panniculitis affecting regions of neck and back, cervicothoracic region.
What is the ICD-10 code for lumbar region back panniculitis?
- M54.06 — Panniculitis affecting regions of neck and back, lumbar region.
What is the ICD-10 code for lumbosacral region back panniculitis?
- M54.07 — Panniculitis affecting regions of neck and back, lumbosacral region.
What is the ICD-10 code for multiple sites back panniculitis?
- M54.09 — Panniculitis affecting regions, neck and back, multiple sites in spine.
What is the ICD-10 code for occipito-atlanto-axial region back panniculitis?
- M54.01 — Panniculitis affecting regions of neck and back, occipito-atlanto-axial region.
Is M54.00 billable?
- Yes. M54.00 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can M54.00 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict M54.00 as a principal diagnosis.
Is M54.00 a CC or MCC?
- No. M54.00 is neither a CC nor an MCC under MS-DRG v44.0.