2021 ICD-10-CM Diagnosis Code M35.6

Relapsing panniculitis [Weber-Christian]

    2016 2017 2018 2019 2020 2021 Billable/Specific Code
  • M35.6 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2021 edition of ICD-10-CM M35.6 became effective on October 1, 2020.
  • This is the American ICD-10-CM version of M35.6 - other international versions of ICD-10 M35.6 may differ.
Type 1 Excludes
Type 1 Excludes Help
A type 1 excludes note is a pure excludes. It means "not coded here". A type 1 excludes note indicates that the code excluded should never be used at the same time as M35.6. A type 1 excludes note is for used for when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
  • lupus panniculitis (
    ICD-10-CM Diagnosis Code L93.2

    Other local lupus erythematosus

      2016 2017 2018 2019 2020 2021 Billable/Specific Code
    Applicable To
    • Lupus erythematosus profundus
    • Lupus panniculitis
    L93.2
    )
  • panniculitis NOS (
    ICD-10-CM Diagnosis Code M79.3

    Panniculitis, unspecified

      2016 2017 2018 2019 2020 2021 Billable/Specific Code
    Type 1 Excludes
    • lupus panniculitis (L93.2)
    • neck and back panniculitis (M54.0-)
    • relapsing [Weber-Christian] panniculitis (M35.6)
    M79.3-
    )
The following code(s) above M35.6 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to M35.6:
  • M00-M99
    2021 ICD-10-CM Range M00-M99

    Diseases of the musculoskeletal system and connective tissue

    Note
    • Use an external cause code following the code for the musculoskeletal condition, if applicable, to identify the cause of the musculoskeletal condition
    Type 2 Excludes
    • arthropathic psoriasis (L40.5-)
    • certain conditions originating in the perinatal period (P04-P96)
    • certain infectious and parasitic diseases (A00-B99)
    • compartment syndrome (traumatic) (T79.A-)
    • complications of pregnancy, childbirth and the puerperium (O00-O9A)
    • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
    • endocrine, nutritional and metabolic diseases (E00-E88)
    • injury, poisoning and certain other consequences of external causes (S00-T88)
    • neoplasms (C00-D49)
    • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
    Diseases of the musculoskeletal system and connective tissue
  • M30-M36
    2021 ICD-10-CM Range M30-M36

    Systemic connective tissue disorders

    Includes
    • autoimmune disease NOS
    • collagen (vascular) disease NOS
    • systemic autoimmune disease
    • systemic collagen (vascular) disease
    Type 1 Excludes
    • autoimmune disease, single organ or single cell-type -code to relevant condition category
    Systemic connective tissue disorders
  • M35
    ICD-10-CM Diagnosis Code M35

    Other systemic involvement of connective tissue

      2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
    Type 1 Excludes
    • reactive perforating collagenosis (L87.1)
    Other systemic involvement of connective tissue
Approximate Synonyms
  • Relapsing febrile nodular nonsuppurative panniculitis
  • Relapsing panniculitis
Clinical Information
  • A form of panniculitis characterized by recurrent episodes of fever accompanied by the eruption of single or multiple erythematous subcutaneous nodules on the lower extremities. They normally resolve, but tend to leave depressions in the skin. The condition is most often seen in women, alone or in association with other disorders.
ICD-10-CM M35.6 is grouped within Diagnostic Related Group(s) (MS-DRG v38.0):
  • 606 Minor skin disorders with mcc
  • 607 Minor skin disorders without mcc

Convert M35.6 to ICD-9-CM

Code History
  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016): No change
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change
  • 2020 (effective 10/1/2019): No change
  • 2021 (effective 10/1/2020): No change
Code annotations containing back-references to M35.6:
  • Type 1 Excludes: L95
    , M54.0
    , M79.3
    ICD-10-CM Diagnosis Code L95

    Vasculitis limited to skin, not elsewhere classified

      2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
    Type 1 Excludes
    • angioma serpiginosum (L81.7)
    • Henoch(-Schönlein) purpura (D69.0)
    • hypersensitivity angiitis (M31.0)
    • lupus panniculitis (L93.2)
    • panniculitis NOS (M79.3)
    • panniculitis of neck and back (M54.0-)
    • polyarteritis nodosa (M30.0)
    • relapsing panniculitis (M35.6)
    • rheumatoid vasculitis (M05.2)
    • serum sickness (T80.6-)
    • urticaria (L50.-)
    • Wegener's granulomatosis (M31.3-)
    ICD-10-CM Diagnosis Code M54.0

    Panniculitis affecting regions of neck and back

      2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
    Type 1 Excludes
    • lupus panniculitis (L93.2)
    • panniculitis NOS (M79.3)
    • relapsing [Weber-Christian] panniculitis (M35.6)
    ICD-10-CM Diagnosis Code M79.3

    Panniculitis, unspecified

      2016 2017 2018 2019 2020 2021 Billable/Specific Code
    Type 1 Excludes
    • lupus panniculitis (L93.2)
    • neck and back panniculitis (M54.0-)
    • relapsing [Weber-Christian] panniculitis (M35.6)

Diagnosis Index entries containing back-references to M35.6:
  • Christian-Weber disease M35.6
  • Panniculitis (nodular) (nonsuppurative) M79.3
    ICD-10-CM Diagnosis Code M79.3

    Panniculitis, unspecified

      2016 2017 2018 2019 2020 2021 Billable/Specific Code
    Type 1 Excludes
    • lupus panniculitis (L93.2)
    • neck and back panniculitis (M54.0-)
    • relapsing [Weber-Christian] panniculitis (M35.6)
    • relapsing M35.6
  • Weber-Christian disease M35.6

ICD-10-CM Codes Adjacent To M35.6
M35.01 Sicca syndrome with keratoconjunctivitis
M35.02 Sicca syndrome with lung involvement
M35.03 Sicca syndrome with myopathy
M35.04 Sicca syndrome with tubulo-interstitial nephropathy
M35.09 Sicca syndrome with other organ involvement
M35.1 Other overlap syndromes
M35.2 Behçet's disease
M35.3 Polymyalgia rheumatica
M35.4 Diffuse (eosinophilic) fasciitis
M35.5 Multifocal fibrosclerosis
M35.6 Relapsing panniculitis [Weber-Christian]
M35.7 Hypermobility syndrome
M35.8 Other specified systemic involvement of connective tissue
M35.81 Multisystem inflammatory syndrome
M35.89 Other specified systemic involvement of connective tissue
M35.9 Systemic involvement of connective tissue, unspecified
M36 Systemic disorders of connective tissue in diseases classified elsewhere
M36.0 Dermato(poly)myositis in neoplastic disease
M36.1 Arthropathy in neoplastic disease
M36.2 Hemophilic arthropathy
M36.3 Arthropathy in other blood disorders

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.