1. Home
  2. ICD-10-CM Codes
  3. O00-O9A
  4. O20-O29
  5. O26
  6. 2024 ICD-10-CM Code O26.00

2024 ICD-10-CM Diagnosis Code O26.00

Excessive weight gain in pregnancy, unspecified trimester

ICD-10-CM Code:
O26.00
ICD-10 Code for:
Excessive weight gain in pregnancy, unspecified trimester
Is Billable?
Yes - Valid for Submission
Chronic Condition Indicator: [1]
Not chronic
Code Navigator:

Code Classification

  • Pregnancy, childbirth and the puerperium
    (O00-O9A)
    • Other maternal disorders predominantly related to pregnancy
      (O20-O29)
      • Maternal care for other conditions predominantly related to pregnancy
        (O26)

O26.00 is a billable diagnosis code used to specify a medical diagnosis of excessive weight gain in pregnancy, unspecified trimester. 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 O26.00 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 code is commonly used in ob/gyn medical specialties to specify clinical concepts such as maternal disorders related to pregnancy.

Unspecified diagnosis codes like O26.00 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:

  • Excessive weight gain during pregnancy
  • High maternal weight gain
  • Weight gain

Clinical Classification

Clinical Information

  • Body-Weight Trajectory

    a general pattern of body weight gain or loss over many years. weight change trajectory is influenced by several determinants in children and adults.

  • Gestational Weight Gain

    increase in body weight of the mother during the course of her pregnancy.

  • Weight Gain

    increase in body weight over existing weight.

  • Pregnancy

    the status during which female mammals carry their developing young (embryos or fetuses) in utero before birth, beginning from fertilization to birth.

  • Body Weight

    the mass or quantity of heaviness of an individual. it is expressed by units of pounds or kilograms.

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 O26.00 to ICD-9-CM

  • ICD-9-CM Code: 646.10 - Edema in preg-unspec
    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.