2023

  1. ICD-10-CM Codes
    2. ›
  2. O00-O9A
    3. ›
  3. O85-O92
    4. ›
  4. O91-
    5. ›
  5. 2023 ICD-10-CM Diagnosis Code O91.01

2023 ICD-10-CM Diagnosis Code O91.01

Infection of nipple associated with pregnancy

    2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code
  • O91.01 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
  • The 2023 edition of ICD-10-CM O91.01 became effective on October 1, 2022.
  • This is the American ICD-10-CM version of O91.01 - other international versions of ICD-10 O91.01 may differ.
Applicable To
  • Gestational abscess of nipple
The following code(s) above O91.01 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 O91.01:
  • O00-O9A
    2023 ICD-10-CM Range O00-O9A

    Pregnancy, childbirth and the puerperium

    Note
    • CODES FROM THIS CHAPTER ARE FOR USE ONLY ON MATERNAL RECORDS, NEVER ON NEWBORN RECORDS
    • Codes from this chapter are for use for conditions related to or aggravated by the pregnancy, childbirth, or by the puerperium (maternal causes or obstetric causes)
    • Trimesters are counted from the first day of the last menstrual period. They are defined as follows:
    • 1st trimester- less than 14 weeks 0 days
    • 2nd trimester- 14 weeks 0 days to less than 28 weeks 0 days
    • 3rd trimester- 28 weeks 0 days until delivery
    Type 1 Excludes
    • supervision of normal pregnancy (Z34.-)
    Type 2 Excludes
    • mental and behavioral disorders associated with the puerperium (F53.-)
    • obstetrical tetanus (A34)
    • postpartum necrosis of pituitary gland (E23.0)
    • puerperal osteomalacia (M83.0)
    Use Additional
    • code from category Z3A, Weeks of gestation, to identify the specific week of the pregnancy, if known.
    Pregnancy, childbirth and the puerperium
  • O85-O92
    2023 ICD-10-CM Range O85-O92

    Complications predominantly related to the puerperium

    Type 2 Excludes
    • mental and behavioral disorders associated with the puerperium (F53.-)
    • obstetrical tetanus (A34)
    • puerperal osteomalacia (M83.0)
    Complications predominantly related to the puerperium
  • O91
    ICD-10-CM Diagnosis Code O91

    Infections of breast associated with pregnancy, the puerperium and lactation

      2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code
    Use Additional
    • code to identify infection
    Infections of breast associated with pregnancy, the puerperium and lactation
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
  • 2022 (effective 10/1/2021): No change
  • 2023 (effective 10/1/2022): No change

Diagnosis Index entries containing back-references to O91.01:
  • Infection, infected, infective (opportunistic) B99.9
    ICD-10-CM Diagnosis Code B99.9

    Unspecified infectious disease

      2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
    • nipple N61.0
      ICD-10-CM Diagnosis Code N61.0

      Mastitis without abscess

        2017 - New Code 2018 2019 2020 2021 2022 2023 Billable/Specific Code
      Applicable To
      • Infective mastitis (acute) (nonpuerperal) (subacute)
      • Mastitis (acute) (nonpuerperal) (subacute) NOS
      • Cellulitis (acute) (nonpuerperal) (subacute) of breast NOS
      • Cellulitis (acute) (nonpuerperal) (subacute) of nipple NOS
  • Pregnancy (single) (uterine) Z33.1
    - see also Delivery and Puerperal
    ICD-10-CM Diagnosis Code Z33.1

    Pregnant state, incidental

      2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code Maternity Dx (12-55 years) Female Dx
    Applicable To
    • Pregnancy NOS
    • Pregnant state NOS
    Type 1 Excludes
    • complications of pregnancy (O00-O9A)
    • pregnant state, gestational carrier (Z33.3)
    • complicated by (care of) (management affected by)
      • infection(s) O98.91-
        ICD-10-CM Diagnosis Code O98.91-

        Unspecified maternal infectious and parasitic disease complicating pregnancy

          2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code
        • nipple O91.01-

ICD-10-CM Codes Adjacent To O91.01
O90.3 Peripartum cardiomyopathy
O90.4 Postpartum acute kidney failure
O90.5 Postpartum thyroiditis
O90.6 Postpartum mood disturbance
O90.8 Other complications of the puerperium, not elsewhere classified
O90.81 Anemia of the puerperium
O90.89 Other complications of the puerperium, not elsewhere classified
O90.9 Complication of the puerperium, unspecified
O91 Infections of breast associated with pregnancy, the puerperium and lactation
O91.0 Infection of nipple associated with pregnancy, the puerperium and lactation
O91.01 Infection of nipple associated with pregnancy
O91.011 …… first trimester
O91.012 …… second trimester
O91.013 …… third trimester
O91.019 …… unspecified trimester
O91.02 Infection of nipple associated with the puerperium
O91.03 Infection of nipple associated with lactation
O91.1 Abscess of breast associated with pregnancy, the puerperium and lactation
O91.11 Abscess of breast associated with pregnancy
O91.111 …… first trimester
O91.112 …… second trimester

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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