K59.39 — Other megacolon
Is K59.39 billable?
Yes — K59.39 is billable for FY2027. K59.39 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. K59.39 may be submitted for encounters from October 1, 2026 through September 30, 2027.
K59.39 at a glance
| Code | K59.39 |
|---|---|
| Description | Other megacolon |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Which MS-DRGs does K59.39 group to?
K59.39 sits in MDC 06 and helps define the logic of 3 MS-DRGs (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.
- 393Other Digestive System Diagnoses with MCCmedical
- 394Other Digestive System Diagnoses with CCmedical
- 395Other Digestive System Diagnoses without CC/MCCmedical
As a secondary diagnosis, K59.39 is a complication or comorbidity (CC), which can move a stay into a higher-paying DRG.
How is K59.39 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to K59.39. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Macrosigmoid
- Megacolon (acquired) (functional) (not Hirschsprung's disease) (in)
- Megasigmoid
- Dilatation › colon
- Dilatation › rectum
- Syndrome › faulty bowel habit
- Excess, excessive, excessively › large › colon
Inclusion terms
Alternative wording in documentation that is classified to K59.39.
- Megacolon NOS
Excludes1 — never code together — inherited from K59
The conditions below can never be reported together with K59.39 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
Excludes1 — never code together — inherited from K59.3
The conditions below can never be reported together with K59.39 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
Code first — inherited from K59.3
The underlying condition below must be sequenced before K59.39. K59.39 describes a manifestation and cannot be the principal or first-listed diagnosis.
- , if applicable (T51-T65) to identify toxic agent
Excludes2 — not included here — inherited from Chapter 11
The conditions below are not part of K59.39, but a patient may have both at the same time. When documentation supports it, K59.39 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 K59
The conditions below are not part of K59.39, but a patient may have both at the same time. When documentation supports it, K59.39 and the excluded code may both be reported.
- functional disorders of stomach (K31.-)
How long has K59.39 existed?
K59.39 first appears in FY2018 (FY2017 is not available, so it may have appeared then).
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.