AutoICD API

O40

Non-billable

Polyhydramnios

Polyhydramnios

This is a header/category code. For billing purposes, use a more specific child code from the list below.

Status

Non-billable / Header

Block

O30-O48

Child Codes

4

Coding Notes

Includes

Conditions included under this code

  • hydramnios

Excludes 1

Codes that cannot be used together with this code (mutual exclusion)

  • supervision of normal pregnancy (Z34.-)
  • encounter for suspected maternal and fetal conditions ruled out (Z03.7-)

Excludes 2

Conditions not included here, but the patient may have both

  • mental and behavioral disorders associated with the puerperium (F53.-)
  • obstetrical tetanus (A34)
  • postpartum necrosis of pituitary gland (E23.0)
  • puerperal osteomalacia (M83.0)

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.

7th Character Definitions

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

Child Codes (4)

O40.1

Polyhydramnios, first trimester

O40.2

Polyhydramnios, second trimester

O40.3

Polyhydramnios, third trimester

O40.9

Polyhydramnios, unspecified trimester

Also Known As / Clinical Terms

UMLS

Frequently Asked Questions

What is ICD-10 code O40?

ICD-10-CM code O40 represents "Polyhydramnios". It is a non-billable header code — use a more specific child code for billing purposes.

Is O40 a billable code?

No, O40 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 4 child codes under O40.

What chapter is O40 in?

O40 is in Chapter 15: Pregnancy, Childbirth and the Puerperium (codes O00-O9A).

What codes cannot be used with O40?

O40 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?

O40 has 4 child codes, including: O40.1 (Polyhydramnios, first trimester), O40.2 (Polyhydramnios, second trimester), O40.3 (Polyhydramnios, third trimester), O40.9 (Polyhydramnios, unspecified trimester).

Are additional codes required with O40?

Yes, when using O40 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?

O40 is linked to 1 UMLS Concept Unique Identifier: C0020224. 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.