O40.2
Non-billablePolyhydramnios, second trimester
Polyhydramnios, second trimester
This is a header/category code. For billing purposes, use a more specific child code from the list below.
Coding Notes
Includes
Conditions included under this code
- hydramnios
Excludes 1
Codes that cannot be used together with this code (mutual exclusion)
Excludes 2
Conditions not included here, but the patient may have both
Use Additional Code
Additional codes that should follow this code
- code, if applicable, from category Z3A, Weeks of gestation, to identify the specific week of the pregnancy, if known.
Child Codes (7)
O40.2XX0Polyhydramnios, second trimester, not applicable or unsp
O40.2XX1Polyhydramnios, second trimester, fetus 1
O40.2XX2Polyhydramnios, second trimester, fetus 2
O40.2XX3Polyhydramnios, second trimester, fetus 3
O40.2XX4Polyhydramnios, second trimester, fetus 4
O40.2XX5Polyhydramnios, second trimester, fetus 5
O40.2XX9Polyhydramnios, second trimester, other fetus
Also Known As / Clinical Terms
Frequently Asked Questions
What is ICD-10 code O40.2?
ICD-10-CM code O40.2 represents "Polyhydramnios, second trimester". It is a non-billable header code — use a more specific child code for billing purposes.
Is O40.2 a billable code?
No, O40.2 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 7 child codes under O40.2.
What chapter is O40.2 in?
O40.2 is in Chapter 15: Pregnancy, Childbirth and the Puerperium (codes O00-O9A).
What codes cannot be used with O40.2?
O40.2 has Excludes1 notes indicating codes that cannot be used together with it, including: supervision of normal pregnancy (Z34.-); encounter for suspected maternal and fetal conditions ruled out (Z03.7-).
What are the subcategories under O40.2?
O40.2 has 7 child codes, including: O40.2XX0 (Polyhydramnios, second trimester, not applicable or unsp), O40.2XX1 (Polyhydramnios, second trimester, fetus 1), O40.2XX2 (Polyhydramnios, second trimester, fetus 2), O40.2XX3 (Polyhydramnios, second trimester, fetus 3), and 3 more.
Are additional codes required with O40.2?
Yes, when using O40.2 you should also code: code, if applicable, from category Z3A, Weeks of gestation, to identify the specific week of the pregnancy, if known..
What are the UMLS CUIs for O40.2?
O40.2 is linked to 1 UMLS Concept Unique Identifier: C2908800. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.