Make room for complications when reporting ulcerative colitis — that’s the future of reporting these conditions when ICD-10 goes into effect Oct. 1, 2015.
Learn the No-Complication Crosswalks
Without considering complications, you can see from the following list that the crosswalk from ICD-9 to ICD-10 is fairly straightforward for ulcerative colitis:
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556.3, Ulcerative (chronic) proctosigmoiditis: K51.30, Ulcerative (chronic) rectosigmoiditis without complications
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556.4, Pseudopolyposis of colon: K51.40, Inflammatory polyps of colon without complications
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556.5, Left-sided ulcerative (chronic) colitis: K51.50, Left sided colitis without complications
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556.6, Universal ulcerative (chronic) colitis: K51.00, Ulcerative (chronic) pancolitis without complications
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556.8, Other ulcerative colitis; or 556.0, Ulcerative (chronic) enterocolitis; or 556.1, Ulcerative (chronic) ileocolitis: K51.80, Other ulcerative colitis without complications
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556.9, Ulcerative colitis unspecified: K51.90, Ulcerative colitis, unspecified, without complications.
Complications Multiply Choices
You won’t get the whole story for ICD-10 ulcerative colitis coding until you learn the fifth and sixth digit options. For each code, a fifth digit of 1 instead of 0 indicates the same condition, except with complications. Then you need to know the sixth digit designations, which report specific complications as follows:
1 — with rectal bleeding
2 — with intestinal obstruction
3 — with fistula
4 — with abscess
8 — with other complication
9 — with unspecified complications.
For instance: Under ICD-9, you would report universal ulcerative colitis with rectal bleeding as 556.6. But the same condition under ICD-10 becomes K51.011 (Ulcerative [chronic] pancolitis with rectal bleeding).