Alphabetic Index FY2027

I87.9

Disorder of vein, unspecified

FY2027Chapter 9: Diseases of the circulatory system/I80–I89 Diseases of veins, lymphatic vessels and lymph nodes, not elsewhere classified

BillableComplete code, valid to report

I87.9 (also written I879) is a billable ICD-10-CM diagnosis code for disorder of vein, unspecified. It is part of the FY2027 code set, effective October 1, 2026. It is one of the 44 codes in category I87 (Other disorders of veins). The Alphabetic Index lists it under 1 entry. Its coding notes include 10 Excludes2 entries.

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.-)

Alphabetic Index terms

Terms the official Alphabetic Index lists for this code. 1 entry