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E87.79 ICD-10-CM Code: Other fluid overload

E87.79 is not a CMS-HCC payment code. MEAT criteria · RAF Calculator · free HCC coding tools

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Code lookupE87.79

FY 2026 Apr update / Endocrine, nutritional and metabolic diseases (E00-E89) / Metabolic disorders (E70-E88)

E87.79

Billable / SpecificICD-10-CMOfficial ICD-10-CMCodebook guidance

Other fluid overload

A condition where the body retains too much fluid from various causes other than transfusion, leading to swelling and organ stress.

OverviewRisk ModelsCode BookDocumentationAuditNotesEdition comparison

CMS-HCC V28

N/A

—

Not mapped

CMS-HCC V24

Historical

Historical

Not used for CY2026 payment

ACA/HHS

N/A

—

Not mapped

ESRD/PACE

N/A

—

Not mapped

RXHCC

N/A

—

Not mapped

Code Book Path

Official
E87Other disorders of fluid, electrolyte and acid-base balanceE87.7Fluid overloadE87.79Other fluid overload

Inclusion Terms

Official

No inclusion terms are included in this display for E87.79. Check the code and parent instructions in the Code Book.

Excludes 2

Official
  • Ehlers-Danlos syndromes (Q79.6-)Inherited from E70-E88

Related Codes

Official
E87.70Fluid overload, unspecifiedE87.71Transfusion associated circulatory overload

Includes

Official

No Includes notes are included in this display for E87.79. Check the code and parent instructions in the Code Book.

Excludes 1

Official
  • transitory endocrine and metabolic disorders specific to newborn (P70-P74)Inherited from E00-E89, E70-E88, E87, E87.7
  • androgen insensitivity syndrome (E34.5-)Inherited from E00-E89, E70-E88, E87, E87.7
  • congenital adrenal hyperplasia (E25.0)Inherited from E00-E89, E70-E88, E87, E87.7
  • hemolytic anemias attributable to enzyme disorders (D55.-)Inherited from E00-E89, E70-E88, E87, E87.7
  • Marfan syndrome (Q87.4-)Inherited from E00-E89, E70-E88, E87, E87.7
  • 5-alpha-reductase deficiency (E29.1)Inherited from E00-E89, E70-E88, E87, E87.7
  • diabetes insipidus (E23.2)Inherited from E00-E89, E70-E88, E87, E87.7
  • electrolyte imbalance associated with hyperemesis gravidarum (O21.1)Inherited from E00-E89, E70-E88, E87, E87.7
  • electrolyte imbalance following ectopic or molar pregnancy (O08.5)Inherited from E00-E89, E70-E88, E87, E87.7
  • familial periodic paralysis (G72.3)Inherited from E00-E89, E70-E88, E87, E87.7
  • metabolic acidemia in newborn, unspecified (P19.9)Inherited from E00-E89, E70-E88, E87, E87.7
  • edema NOS (R60.9)Inherited from E00-E89, E70-E88, E87, E87.7
  • fluid retention (R60.9)Inherited from E00-E89, E70-E88, E87, E87.7

Code First

Official

No Code First sequencing instructions are included in this display for E87.79. Check the code and parent instructions in the Code Book.

Use Additional

Official

No Use Additional Code instructions are included in this display for E87.79. Check the code and parent instructions in the Code Book.

Code Also

Official

No Code Also instructions are included in this display for E87.79. Check the code and parent instructions in the Code Book.

Buddy Documentation Tip

HCC Buddy guidance
Document the specific cause of fluid overload when possible (heart failure, renal disease, etc.)
This is a catch-all code for fluid overload not classified elsewhere

Current with CMS: FY2026 ICD-10-CM Apr 1 update (effective Apr 1 – Sep 30, 2026) · CMS-HCC V28, 100% phased in for payment year 2026. FY2027 code set already staged for October 1, 2026. How HCC Buddy stays current →

Is E87.79 an HCC code?

No. E87.79 is a billable ICD-10-CM code with no mapping under the current CMS-HCC V28 community payment model, and none under the ESRD, Part D RxHCC, or HHS-HCC models.

Code
E87.79
Description
Other fluid overload
HCC (V28)
No CMS-HCC V28 mapping
RAF reference coefficient
—
Billable
Yes
Payment year
2026

Coder workflow notes

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What This Code Means

E87.79 is the ICD-10-CM diagnosis code for other fluid overload. A condition where the body retains too much fluid from various causes other than transfusion, leading to swelling and organ stress. E87.79 sits in the ICD-10-CM chapter for endocrine, nutritional and metabolic diseases (e00-e89), within the section covering metabolic disorders (e70-e88).

E87.79 is a billable ICD-10-CM code, but no current CMS-HCC V28 community payment mapping is shown, and none under the ESRD, Part D RxHCC, or HHS-HCC models. Do not assign risk adjustment value from this page when no source-backed mapping is shown; verify the applicable model and payment year.

Document the specific cause of fluid overload when possible (heart failure, renal disease, etc.).

HCC Buddy maintains structured V28 and V24 mapping, source-labeled coefficient references, and MEAT documentation criteria for E87.79 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.

Coding Tips

  • •Document the specific cause of fluid overload when possible (heart failure, renal disease, etc.)
  • •This is a catch-all code for fluid overload not classified elsewhere

Child Codes

E87.70Fluid overload, unspecified
E87.71Transfusion associated circulatory overload
E87.79Other fluid overload

Code Hierarchy

└E87Other disorders of fluid, electrolyte and acid-base balance└E87.7Fluid overload└E87.79Other fluid overload
└E87.79Other fluid overload

Also searched as

  • E87 79
  • E8779

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