ICD-10-CM Code C58

Valid for Submission

C58 is a billable code used to specify a medical diagnosis of malignant neoplasm of placenta. The code is valid for the fiscal year 2021 for the submission of HIPAA-covered transactions. The ICD-10-CM code C58 might also be used to specify conditions or terms like choriocarcinoma, choriocarcinoma, choriocarcinoma, choriocarcinoma of placenta, epithelioid trophoblastic tumor, gestational choriocarcinoma, etc

The code C58 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.

The following anatomical sites found in the Table of Neoplasms apply to this code given the correct histological behavior: Neoplasm, neoplastic fetal membrane or Neoplasm, neoplastic placenta .

Tabular List of Diseases and Injuries

The Tabular List of Diseases and Injuries is a list of ICD-10 codes, organized "head to toe" into chapters and sections with guidance for inclusions, exclusions, descriptions and more. The following references are applicable to the code C58:

Includes

Includes
This note appears immediately under a three character code title to further define, or give examples of, the content of the category.

• choriocarcinoma NOS
• chorionepithelioma NOS

Type 1 Excludes

Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.

• chorioadenoma destruens D39.2
• hydatidiform mole NOS O01.9
• invasive hydatidiform mole D39.2
• male choriocarcinoma NOS C62.9
• malignant hydatidiform mole D39.2

Index to Diseases and Injuries

The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10 code(s). The following references for the code C58 are found in the index:

• - Carcinoma (malignant) - See Also: Neoplasm, by site, malignant;
  • - chorionic
    • - unspecified site
      • - female - C58

• - Choriocarcinoma - See: Neoplasm, malignant, by site;
  • - unspecified site
    • - female - C58

Code Edits

The Medicare Code Editor (MCE) detects and reports errors in the coding of claims data. The following ICD-10 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 .

Synonyms

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

• Choriocarcinoma
• Choriocarcinoma
• Choriocarcinoma
• Choriocarcinoma of placenta
• Epithelioid trophoblastic tumor
• Gestational choriocarcinoma
• Gestational trophoblast TNM finding
• Gestational trophoblast TNM finding
• Gestational trophoblastic disease
• Gestational trophoblastic disease
• Gestational trophoblastic neoplasia
• Gestational trophoblastic neoplasia
• M1a : GTT extends to the lungs with or without genital tract involvement
• M1a : GTT extends to the lungs with or without genital tract involvement with one risk factor
• M1a : GTT extends to the lungs with or without genital tract involvement with two risk factors
• M1a : GTT extends to the lungs with or without genital tract involvement without risk factors
• Malignant neoplastic disease in pregnancy
• Malignant neoplastic disease in pregnancy
• Metastasis stage M1a
• Metastasis stage M1a
• Metastasis stage M1a
• Metastasis stage M1a
• pM1a
• pM1b
• Primary malignant neoplasm of placenta

Diagnostic Related Groups

The ICD-10 code C58 is grouped in the following groups for version MS-DRG V38.0 What are Diagnostic Related Groups?
The Diagnostic Related Groups (DRGs) are a patient classification scheme which provides a means of relating the type of patients a hospital treats. The DRGs divides all possible principal diagnoses into mutually exclusive principal diagnosis areas referred to as Major Diagnostic Categories (MDC). applicable from 10/01/2020 through 09/30/2021.

• 736 - UTERINE AND ADNEXA PROCEDURES FOR OVARIAN OR ADNEXAL MALIGNANCY WITH MCC
• 737 - UTERINE AND ADNEXA PROCEDURES FOR OVARIAN OR ADNEXAL MALIGNANCY WITH CC
• 738 - UTERINE AND ADNEXA PROCEDURES FOR OVARIAN OR ADNEXAL MALIGNANCY WITHOUT CC/MCC
• 739 - UTERINE AND ADNEXA PROCEDURES FOR NON-OVARIAN AND NON-ADNEXAL MALIGNANCY WITH MCC
• 740 - UTERINE AND ADNEXA PROCEDURES FOR NON-OVARIAN AND NON-ADNEXAL MALIGNANCY WITH CC
• 741 - UTERINE AND ADNEXA PROCEDURES FOR NON-OVARIAN AND NON-ADNEXAL MALIGNANCY WITHOUT CC/MCC

Convert C58 to ICD-9

• 181 - Malignant neopl placenta

Code Classification

• Neoplasms (C00–D48)
  • Malignant neoplasms of female genital organs (C51-C58)
    • Malignant neoplasm of placenta (C58)

Code History

• FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016
  (First year ICD-10-CM implemented into the HIPAA code set)
• FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
• FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
• FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
• FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
• FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021

Tools

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• Convert C58 to ICD-9