2021

  1. ICD-10-CM Codes
    2. ›
  2. R00-R99 Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified
    3. ›
  3. R20-R23 Symptoms and signs involving the skin and subcutaneous tissue
    4. ›
  4. R23- Other skin changes
    5. ›
  5. 2021 ICD-10-CM Diagnosis Code R23.0

2021 ICD-10-CM Diagnosis Code R23.0

Cyanosis

    2016 2017 2018 2019 2020 2021 Billable/Specific Code
  • R23.0 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 R23.0 became effective on October 1, 2020.
  • This is the American ICD-10-CM version of R23.0 - other international versions of ICD-10 R23.0 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 R23.0. 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.
  • acrocyanosis (
    ICD-10-CM Diagnosis Code I73.8

    Other specified peripheral vascular diseases

      2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
    Type 1 Excludes
    • diabetic (peripheral) angiopathy (E08-E13 with .51-.52)
    I73.8
    )
  • cyanotic attacks of newborn (
    ICD-10-CM Diagnosis Code P28.2

    Cyanotic attacks of newborn

      2016 2017 2018 2019 2020 2021 Billable/Specific Code Code on Newborn Record
    Type 1 Excludes
    P28.2
    )
The following code(s) above R23.0 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 R23.0:
  • R00-R99
    2021 ICD-10-CM Range R00-R99

    Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified

    Note
    • This chapter includes symptoms, signs, abnormal results of clinical or other investigative procedures, and ill-defined conditions regarding which no diagnosis classifiable elsewhere is recorded.
    • Signs and symptoms that point rather definitely to a given diagnosis have been assigned to a category in other chapters of the classification. In general, categories in this chapter include the less well-defined conditions and symptoms that, without the necessary study of the case to establish a final diagnosis, point perhaps equally to two or more diseases or to two or more systems of the body. Practically all categories in the chapter could be designated 'not otherwise specified', 'unknown etiology' or 'transient'. The Alphabetical Index should be consulted to determine which symptoms and signs are to be allocated here and which to other chapters. The residual subcategories, numbered .8, are generally provided for other relevant symptoms that cannot be allocated elsewhere in the classification.
    • The conditions and signs or symptoms included in categories R00-R94 consist of:
    • (a) cases for which no more specific diagnosis can be made even after all the facts bearing on the case have been investigated;
    • (b) signs or symptoms existing at the time of initial encounter that proved to be transient and whose causes could not be determined;
    • (c) provisional diagnosis in a patient who failed to return for further investigation or care;
    • (d) cases referred elsewhere for investigation or treatment before the diagnosis was made;
    • (e) cases in which a more precise diagnosis was not available for any other reason;
    • (f) certain symptoms, for which supplementary information is provided, that represent important problems in medical care in their own right.
    Type 2 Excludes
    • abnormal findings on antenatal screening of mother (O28.-)
    • certain conditions originating in the perinatal period (P04-P96)
    • signs and symptoms classified in the body system chapters
    • signs and symptoms of breast (N63, N64.5)
    Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified
  • R20-R23
    2021 ICD-10-CM Range R20-R23

    Symptoms and signs involving the skin and subcutaneous tissue

    Type 2 Excludes
    Symptoms and signs involving the skin and subcutaneous tissue
Clinical Information
  • A bluish or purplish discoloration of the skin and mucous membranes due to an increase in the amount of deoxygenated hemoglobin in the blood or a structural defect in the hemoglobin molecule.
  • A bluish or purplish discoloration of the skin and mucous membranes resulting from a reduced amount of oxygenated hemoglobin in the blood.
  • Blue-colored skin caused by too little oxygen in the blood
  • Blue-colored skin caused by too little oxygen in the blood.
  • Blueness of the skin caused by excessive amounts of deoxyhemoglobin in the skin vessels.
ICD-10-CM R23.0 is grouped within Diagnostic Related Group(s) (MS-DRG v38.0):
  • 947 Signs and symptoms with mcc
  • 948 Signs and symptoms without mcc

Convert R23.0 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

Diagnosis Index entries containing back-references to R23.0:
  • Change(s) (in) (of) - see also Removal
    • skin R23.9
      ICD-10-CM Diagnosis Code R23.9

      Unspecified skin changes

        2016 2017 2018 2019 2020 2021 Billable/Specific Code
      • cyanosis R23.0
  • Cyanosis R23.0

ICD-10-CM Codes Adjacent To R23.0
R22.31 Localized swelling, mass and lump, right upper limb
R22.32 Localized swelling, mass and lump, left upper limb
R22.33 …… bilateral
R22.4 Localized swelling, mass and lump, lower limb
R22.40 Localized swelling, mass and lump, unspecified lower limb
R22.41 Localized swelling, mass and lump, right lower limb
R22.42 Localized swelling, mass and lump, left lower limb
R22.43 …… bilateral
R22.9 Localized swelling, mass and lump, unspecified
R23 Other skin changes
R23.0 Cyanosis
R23.1 Pallor
R23.2 Flushing
R23.3 Spontaneous ecchymoses
R23.4 Changes in skin texture
R23.8 Other skin changes
R23.9 Unspecified skin changes
R25 Abnormal involuntary movements
R25.0 Abnormal head movements
R25.1 Tremor, unspecified
R25.2 Cramp and spasm

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

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