10ICD Code Hub

K27

Header — not billable

Peptic ulcer, site unspecified

The ICD-10 code for peptic ulcer, site unspecified is K27.

K27 is a non-billable header code. It groups related conditions but cannot be used on its own for reimbursement — select one of the 9 more specific codes below.

Clinical notes

Excludes1 (not coded here)

An Excludes1 note is a pure exclusion: the excluded condition and this code should never be reported together, because the two conditions cannot occur at the same time (e.g. a congenital form vs. an acquired form of the same disease).

  • peptic ulcer of newborn (P78.82)

Includes

Terms listed here further define or give examples of the conditions grouped under this code — they describe what the code covers, not a separate diagnosis.

  • gastroduodenal ulcer NOS
  • peptic ulcer NOS

Use additional code

This code represents an underlying condition. When a related manifestation is also present, coding convention calls for an additional code to be listed after this one.

  • code to identify:
  • alcohol abuse and dependence (F10.-)

Documentation support

General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.

Child codes under K27

Related codes in this category