I31.3

Pericardial effusion (noninflammatory)

FY2027Chapter 9: Diseases of the circulatory system/I30–I5A Other forms of heart disease

Non-billable headerNot valid on its own. Use one of the more specific codes under it.

I31.3 is a non-billable ICD-10-CM code header for pericardial effusion (noninflammatory). Report a more specific code from it instead. It is part of the FY2027 code set, effective October 1, 2026. The more specific codes under it are I31.31 Malignant pericardial effusion in diseases classified elsewhere and I31.39 Other pericardial effusion (noninflammatory). Its coding notes include 4 Excludes1 entries and 10 Excludes2 entries.

Excludes1

Not coded here. The listed conditions generally should not be reported together.

This code
  • acute pericardial effusion (I30.9)
Inherited from I31 Other diseases of pericardium
  • diseases of pericardium specified as rheumatic (I09.2)
  • postcardiotomy syndrome (I97.0)
  • traumatic injury to pericardium (S26.-)

Excludes2

Not included here. Both codes may be reported if the patient has both conditions.

Also from chapter/block level (10 notes)
Inherited from Chapter 9 Diseases of the circulatory system
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
  • systemic connective tissue disorders (M30-M36)
  • transient cerebral ischemic attacks and related syndromes (G45.-)

More specific codes under I31.3 2