2024 ICD-10-CM Diagnosis Code O41.1290

Chorioamnionitis, unspecified trimester, not applicable or unspecified

ICD-10-CM Code:
O41.1290
ICD-10 Code for:
Chorioamnionitis, unsp trimester, not applicable or unsp
Is Billable?
Yes - Valid for Submission
Chronic Condition Indicator: [1]
Not chronic
Code Navigator:

Code Classification

  • Pregnancy, childbirth and the puerperium
    (O00-O9A)
    • Maternal care related to the fetus and amniotic cavity and possible delivery problems
      (O30-O48)
      • Other disorders of amniotic fluid and membranes
        (O41)

O41.1290 is a billable diagnosis code used to specify a medical diagnosis of chorioamnionitis, unspecified trimester, not applicable or unspecified. The code is valid during the current fiscal year for the submission of HIPAA-covered transactions from October 01, 2023 through September 30, 2024.

The code O41.1290 is applicable to female patients aged 12 through 55 years inclusive. It is clinically and virtually impossible to use this code on a non-female patient outside the stated age range.

Unspecified diagnosis codes like O41.1290 are acceptable when clinical information is unknown or not available about a particular condition. Although a more specific code is preferable, unspecified codes should be used when such codes most accurately reflect what is known about a patient's condition. Specific diagnosis codes should not be used if not supported by the patient's medical record.

Approximate Synonyms

The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

  • Acute chorioamnionitis
  • Chorioamnionitis
  • Placentitis
  • Subchorionic intervillositis
  • Villitis

Clinical Classification

Clinical Information

  • Chorioamnionitis

    inflammation of the placental membranes (chorion; amnion) and connected tissues such as fetal blood vessels and umbilical cord. it is often associated with intrauterine ascending infections during pregnancy.
  • Chorioamnionitis

    a morphologic finding indicating inflammation of the fetal sac membranes. it is characterized by neutrophilic infiltration of the amnion and chorion.
  • Clinical Chorioamnionitis

    inflammation of the fetal sac membranes, characterized by otherwise unexplained fever (at or above 38 degree c (100.4f)) with one or more of the following: uterine tenderness and/or irritability, leukocytosis, fetal tachycardia, maternal tachycardia, or malodorous vaginal discharge.
  • Histologic Chorioamnionitis|Acute Amnionitis|Acute Chorioamnionitis|Acute Choriodeciduitis|Acute Chorionitis|Microscopic Chorioamnionitis

    inflammation of the fetal sac membranes that is characterized by neutrophilic infiltration of the amnion and chorion.

Code Edits

The Medicare Code Editor (MCE) detects and reports errors in the coding of claims data. The following ICD-10-CM Code Edits are applicable to this code:

  • Maternity diagnoses - The Medicare Code Editor detects inconsistencies in maternity cases by checking a patient's age and any diagnosis on the patient's record. The maternity code edits apply to patients age ange is 9–64 years inclusive (e.g., diabetes in pregnancy, antepartum pulmonary complication).
  • Diagnoses for females only - The Medicare Code Editor detects inconsistencies between a patient’s sex and any diagnosis on the patient’s record, these edits apply to FEMALES only .

Convert O41.1290 to ICD-9-CM

  • ICD-9-CM Code: 658.40 - Amniotic infection-unsp
    Approximate Flag - The approximate mapping means there is not an exact match between the ICD-10 and ICD-9 codes and the mapped code is not a precise representation of the original code.

Code History

  • FY 2024 - No Change, effective from 10/1/2023 through 9/30/2024
  • FY 2023 - No Change, effective from 10/1/2022 through 9/30/2023
  • FY 2022 - No Change, effective from 10/1/2021 through 9/30/2022
  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016. This was the first year ICD-10-CM was implemented into the HIPAA code set.

Footnotes

[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.