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
Related Codes(3)
Also Known As / Clinical Terms(1)
Frequently Asked Questions
What is the ICD-10 code for polyhydramnios, second trimester?
The ICD-10-CM code for polyhydramnios, second trimester is O40.2. The full clinical description is "Polyhydramnios, second trimester". O40.2 is a non-billable header code. Use a more specific child code for billing purposes.
What does ICD-10 code O40.2 mean?
ICD-10-CM code O40.2 represents “Polyhydramnios, second trimester”. It is classified under Chapter 15: Pregnancy, Childbirth and the Puerperium and 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, also report: 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.
How does O40.2 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like polyhydramnios, second trimester affect a person's functioning — body functions, activities, participation, and environmental factors. AutoICD provides ICF Core Sets for 12+ conditions and can map clinical text to ICF categories automatically. Browse the ICF directory to explore functioning codes.
What is the ICD-11 equivalent of O40.2?
There is no direct ICD-11 mapping available for O40.2 in the WHO crosswalk tables. This may mean the concept is classified differently in ICD-11. Use the ICD-10 to ICD-11 converter to search for related codes.
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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.