2020 ICD-10-CM Diagnosis Code A46

Erysipelas

    2016 2017 2018 2019 2020 Billable/Specific Code
  • A46 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2020 edition of ICD-10-CM A46 became effective on October 1, 2019.
  • This is the American ICD-10-CM version of A46 - other international versions of ICD-10 A46 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 A46. 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.
  • postpartum or puerperal erysipelas (
    ICD-10-CM Diagnosis Code O86.89

    Other specified puerperal infections

      2016 2017 2018 2019 2020 Billable/Specific Code Maternity Dx (12-55 years)
    O86.89
    )
The following code(s) above A46 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 A46:
  • A00-B99
    2020 ICD-10-CM Range A00-B99

    Certain infectious and parasitic diseases

    Includes
    • diseases generally recognized as communicable or transmissible
    Type 1 Excludes
    • certain localized infections - see body system-related chapters
    Type 2 Excludes
    • carrier or suspected carrier of infectious disease (Z22.-)
    • infectious and parasitic diseases complicating pregnancy, childbirth and the puerperium (O98.-)
    • infectious and parasitic diseases specific to the perinatal period (P35-P39)
    • influenza and other acute respiratory infections (J00-J22)
    Use Additional
    • code to identify resistance to antimicrobial drugs (Z16.-)
    Certain infectious and parasitic diseases
Approximate Synonyms
  • Erysipelas of bilateral leg
  • Erysipelas of bilateral lower limbs
  • Erysipelas of left leg
  • Erysipelas of left lower limb
  • Erysipelas of leg
  • Erysipelas of lower limb
  • Erysipelas of right leg
  • Erysipelas of right lower limb
Clinical Information
  • An acute infection of the skin caused by species of streptococcus. This disease most frequently affects infants, young children, and the elderly. Characteristics include pink-to-red lesions that spread rapidly and are warm to the touch. The commonest site of involvement is the face.
ICD-10-CM A46 is grouped within Diagnostic Related Group(s) (MS-DRG v37.0):
  • 602 Cellulitis with mcc
  • 603 Cellulitis without mcc

Convert A46 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
Code annotations containing back-references to A46:
  • Code First: H62.4
    ICD-10-CM Diagnosis Code H62.4

    Otitis externa in other diseases classified elsewhere

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Code First
    • underlying disease, such as:
    • erysipelas (A46)
    • impetigo (L01.0)
    Type 1 Excludes
    • otitis externa (in):
    • candidiasis (B37.84)
    • herpes viral [herpes simplex] (B00.1)
    • herpes zoster (B02.8)

Diagnosis Index entries containing back-references to A46:
  • Arthritis, arthritic (acute) (chronic) (nonpyogenic) (subacute) M19.90
    ICD-10-CM Diagnosis Code M19.90

    Unspecified osteoarthritis, unspecified site

      2016 2017 2018 2019 2020 Billable/Specific Code
    Applicable To
    • Arthrosis NOS
    • Arthritis NOS
    • Osteoarthritis NOS
  • Erysipelas (gangrenous) (infantile) (newborn) (phlegmonous) (suppurative) A46
    • external ear A46
  • Otitis (acute) H66.90
    ICD-10-CM Diagnosis Code H66.90

    Otitis media, unspecified, unspecified ear

      2016 2017 2018 2019 2020 Billable/Specific Code
    • externa H60.9-
      ICD-10-CM Diagnosis Code H60.9-

      Unspecified otitis externa

        2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
      • in (due to)
        • erysipelas A46

ICD-10-CM Codes Adjacent To A46
A43 Nocardiosis
A43.0 Pulmonary nocardiosis
A43.1 Cutaneous nocardiosis
A43.8 Other forms of nocardiosis
A43.9 Nocardiosis, unspecified
A44 Bartonellosis
A44.0 Systemic bartonellosis
A44.1 Cutaneous and mucocutaneous bartonellosis
A44.8 Other forms of bartonellosis
A44.9 Bartonellosis, unspecified
A46 Erysipelas
A48 Other bacterial diseases, not elsewhere classified
A48.0 Gas gangrene
A48.1 Legionnaires' disease
A48.2 Nonpneumonic Legionnaires' disease [Pontiac fever]
A48.3 Toxic shock syndrome
A48.4 Brazilian purpuric fever
A48.5 Other specified botulism
A48.51 Infant botulism
A48.52 Wound botulism
A48.8 Other specified bacterial diseases

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