K27 — Peptic ulcer, site unspecified
Is K27 billable?
No — K27 is a non-billable header code. K27 groups more specific codes and cannot be submitted on a claim. A valid ICD-10-CM code must be reported at the highest level of specificity available in its branch. Select one of the 9 billable codes beneath K27.
Billable codes under this header
- K27.0Acute peptic ulcer, site unspecified, with hemorrhage
- K27.1Acute peptic ulcer, site unspecified, with perforation
- K27.2Acute peptic ulcer, site unspecified, with both hemorrhage and perforation
- K27.3Acute peptic ulcer, site unspecified, without hemorrhage or perforation
- K27.4Chronic or unspecified peptic ulcer, site unspecified, with hemorrhage
- K27.5Chronic or unspecified peptic ulcer, site unspecified, with perforation
- K27.6Chronic or unspecified peptic ulcer, site unspecified, with both hemorrhage and perforation
- K27.7Chronic peptic ulcer, site unspecified, without hemorrhage or perforation
- K27.9Peptic ulcer, site unspecified, unspecified as acute or chronic, without hemorrhage or perforation
K27 at a glance
| Code | K27 |
|---|---|
| Description | Peptic ulcer, site unspecified |
| Billable | No — header code |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Excludes1 — never code together
The conditions below can never be reported together with K27 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- peptic ulcer of newborn (P78.82)
Use additional code
Report an additional code alongside K27 to fully describe the condition. K27 is sequenced first.
- code to identify:
- alcohol abuse and dependence (F10.-)
Includes
Conditions classified to K27.
- gastroduodenal ulcer NOS
- peptic ulcer NOS
Excludes2 — not included here — inherited from Chapter 11
The conditions below are not part of K27, but a patient may have both at the same time. When documentation supports it, K27 and the excluded code may both be reported.
- 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)
Excludes2 — not included here — inherited from K20-K31
The conditions below are not part of K27, but a patient may have both at the same time. When documentation supports it, K27 and the excluded code may both be reported.
- hiatus hernia (K44.-)
What codes fall under K27? (9)
- K27.0Acute peptic ulcer, site unspecified, with hemorrhage
- K27.1Acute peptic ulcer, site unspecified, with perforation
- K27.2Acute peptic ulcer, site unspecified, with both hemorrhage and perforation
- K27.3Acute peptic ulcer, site unspecified, without hemorrhage or perforation
- K27.4Chronic or unspecified peptic ulcer, site unspecified, with hemorrhage
- K27.5Chronic or unspecified peptic ulcer, site unspecified, with perforation
- K27.6Chronic or unspecified peptic ulcer, site unspecified, with both hemorrhage and perforation
- K27.7Chronic peptic ulcer, site unspecified, without hemorrhage or perforation
- K27.9Peptic ulcer, site unspecified, unspecified as acute or chronic, without hemorrhage or perforation
How long has K27 existed?
K27 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.
Which codes are confused with K27?
ICD-10-CM declares these codes mutually exclusive with K27 — exactly one of each pair can be correct for a given encounter.