O36.8120 ICD-10-CM Code: Decreased fetal movements, second trimester, not applicable or unspecified
A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.
Code definition
Official description
O36.8120Decreased fetal movements, second trimester, not applicable or unspecified
ICD-10-CM diagnosis code · United States clinical modification
Classification
Where O36.8120 sits
- 1
Chapter 15
Pregnancy, childbirth and the puerperium (O00-O9A)
- 2
Section
Maternal care related to the fetus and amniotic cavity and possible delivery problems (O30-O48)
- 3
Category O36
Maternal care for other fetal problems
- 4
Subcategory O36.812
Decreased fetal movements, second trimester
- 5
Code O36.8120
Decreased fetal movements, second trimester, not applicable or unspecified
Documentation details
Notes for this code
Inclusion terms
No inclusion terms are listed for O36.8120.
Code first
No “code first” instruction is listed for O36.8120.
Use additional code
No “use additional code” instruction is listed for O36.8120.
Excludes1
Conditions that should not be reported together with this code.
No Excludes1 note is listed for O36.8120.
Excludes2
Conditions not included here that may be reported separately when present.
No Excludes2 note is listed for O36.8120.
Transparency
Source and release
This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.
Review the CDC/NCHS ICD-10-CM sourceCode-specific guidance
Frequently asked questions
What does ICD-10-CM code O36.8120 mean?
O36.8120 is the FY 2027 U.S. ICD-10-CM code for “Decreased fetal movements, second trimester, not applicable or unspecified.”
Is O36.8120 a billable or specific ICD-10-CM code?
Yes. In the FY 2027 reference data used on this page, O36.8120 has no child codes and is presented as a billable/specific code. Always confirm the active code set and payer requirements before use.
Where is O36.8120 located in ICD-10-CM?
O36.8120 is listed in Chapter 15, Pregnancy, childbirth and the puerperium (O00-O9A), within Maternal care related to the fetus and amniotic cavity and possible delivery problems (O30-O48) (O30–O48), under category O36, Maternal care for other fetal problems and subcategory O36.812, Decreased fetal movements, second trimester.
What coding notes are listed for O36.8120?
No inclusion terms are listed for O36.8120 in this reference record. No code-first instruction is listed. No Excludes1 note is listed. No Excludes2 note is listed.
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