K51.31

Ulcerative (chronic) rectosigmoiditis with complications

Non-billable header

K51.31 is a non-billable header code. Use one of the more specific codes below.

Inclusion terms

Includes (from K51)

  • noninfective inflammatory bowel disease

Excludes1

Not coded here — never report together with this code.

  • irritable bowel syndrome (K58.-) (from K51)
  • megacolon (K59.3-) (from K51)
  • Crohn's disease [regional enteritis] (K50.-) (from K51)

Excludes2

Not included here — may be reported together when both conditions exist.

  • certain conditions originating in the perinatal period (P04-P96) (from K51)
  • certain infectious and parasitic diseases (A00-B99) (from K51)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A) (from K51)
  • congenital malformations, deformations and chromosomal abnormalities (Q00-Q99) (from K51)
  • endocrine, nutritional and metabolic diseases (E00-E88) (from K51)
  • injury, poisoning and certain other consequences of external causes (S00-T88) (from K51)
  • neoplasms (C00-D49) (from K51)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94) (from K51)

Use additional code

Add a code to identify the following, if applicable.

  • code to identify any associated fistulas, if applicable: (from K51)
  • anal fistula (K60.3-) (from K51)
  • anorectal fistula (K60.5-) (from K51)
  • rectal fistula (K60.4-) (from K51)
  • code to identify manifestations, such as: (from K51)
  • pyoderma gangrenosum (L88) (from K51)

Parent code

  • K51.3Ulcerative (chronic) rectosigmoiditisHeader

More specific codes K51.31

  • K51.311Ulcerative (chronic) rectosigmoiditis with rectal bleedingBillable
  • K51.312Ulcerative (chronic) rectosigmoiditis with intestinal obstructionBillable
  • K51.313Ulcerative (chronic) rectosigmoiditis with fistulaBillable
  • K51.314Ulcerative (chronic) rectosigmoiditis with abscessBillable
  • K51.318Ulcerative (chronic) rectosigmoiditis with other complicationBillable
  • K51.319Ulcerative (chronic) rectosigmoiditis with unspecified complicationsBillable

Related codes

  • K51.30Ulcerative (chronic) rectosigmoiditis without complicationsBillable

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