2021 ICD-10-CM Codes for Polyhydramnios (O40)

  1. ICD-10 Index
  2. Chapter: O00–O99
  3. Section: O30-O48
  4. Polyhydramnios (O40)

Instructional Notations

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

  • hydramnios

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.

  • encounter for suspected maternal and fetal conditions ruled out Z03.7

7th Character Note 7th Character Note
Certain ICD-10-CM categories have applicable 7th characters. The applicable 7th character is required for all codes within the category, or as the notes in the Tabular List instruct. The 7th character must always be the 7th character in the data field. If a code that requires a 7th character is not 6 characters, a placeholder X must be used to fill in the empty characters.

  • One of the following 7th characters is to be assigned to each code under category O40. 7th character 0 is for single gestations and multiple gestations where the fetus is unspecified. 7th characters 1 through 9 are for cases of multiple gestations to identify the fetus for which the code applies. The appropriate code from category O30

7th Character 7th Character
Indicates that a seventh character is to be assigned to codes in a subcategory.

  • 0 - not applicable or unspecified
  • 1 - fetus 1
  • 2 - fetus 2
  • 3 - fetus 3
  • 4 - fetus 4
  • 5 - fetus 5
  • 9 - other fetus

    • ICD-10 Index

      • Pregnancy, childbirth and the puerperium (O00–O99)

        • Maternal care related to the fetus and amniotic cavity and possible delivery problems (O30-O48)

            • Polyhydramnios (O40)
            • O40 - Polyhydramnios NON-BILLABLE CODE
            • O40.1 - Polyhydramnios, first trimester NON-BILLABLE CODE
            • O40.1XX0 - Polyhydramnios, first trimester, not applicable or unsp BILLABLE CODE
            • O40.1XX1 - Polyhydramnios, first trimester, fetus 1 BILLABLE CODE
            • O40.1XX2 - Polyhydramnios, first trimester, fetus 2 BILLABLE CODE
            • O40.1XX3 - Polyhydramnios, first trimester, fetus 3 BILLABLE CODE
            • O40.1XX4 - Polyhydramnios, first trimester, fetus 4 BILLABLE CODE
            • O40.1XX5 - Polyhydramnios, first trimester, fetus 5 BILLABLE CODE
            • O40.1XX9 - Polyhydramnios, first trimester, other fetus BILLABLE CODE
            • O40.2 - Polyhydramnios, second trimester NON-BILLABLE CODE
            • O40.2XX0 - Polyhydramnios, second trimester, not applicable or unsp BILLABLE CODE
            • O40.2XX1 - Polyhydramnios, second trimester, fetus 1 BILLABLE CODE
            • O40.2XX2 - Polyhydramnios, second trimester, fetus 2 BILLABLE CODE
            • O40.2XX3 - Polyhydramnios, second trimester, fetus 3 BILLABLE CODE
            • O40.2XX4 - Polyhydramnios, second trimester, fetus 4 BILLABLE CODE
            • O40.2XX5 - Polyhydramnios, second trimester, fetus 5 BILLABLE CODE
            • O40.2XX9 - Polyhydramnios, second trimester, other fetus BILLABLE CODE
            • O40.3 - Polyhydramnios, third trimester NON-BILLABLE CODE
            • O40.3XX0 - Polyhydramnios, third trimester, not applicable or unsp BILLABLE CODE
            • O40.3XX1 - Polyhydramnios, third trimester, fetus 1 BILLABLE CODE
            • O40.3XX2 - Polyhydramnios, third trimester, fetus 2 BILLABLE CODE
            • O40.3XX3 - Polyhydramnios, third trimester, fetus 3 BILLABLE CODE
            • O40.3XX4 - Polyhydramnios, third trimester, fetus 4 BILLABLE CODE
            • O40.3XX5 - Polyhydramnios, third trimester, fetus 5 BILLABLE CODE
            • O40.3XX9 - Polyhydramnios, third trimester, other fetus BILLABLE CODE
            • O40.9 - Polyhydramnios, unspecified trimester NON-BILLABLE CODE
            • O40.9XX0 - Polyhydramnios, unsp trimester, not applicable or unsp BILLABLE CODE
            • O40.9XX1 - Polyhydramnios, unspecified trimester, fetus 1 BILLABLE CODE
            • O40.9XX2 - Polyhydramnios, unspecified trimester, fetus 2 BILLABLE CODE
            • O40.9XX3 - Polyhydramnios, unspecified trimester, fetus 3 BILLABLE CODE
            • O40.9XX4 - Polyhydramnios, unspecified trimester, fetus 4 BILLABLE CODE
            • O40.9XX5 - Polyhydramnios, unspecified trimester, fetus 5 BILLABLE CODE
            • O40.9XX9 - Polyhydramnios, unspecified trimester, other fetus BILLABLE CODE