R88.8 — Abnormal findings in other body fluids and substances
Is R88.8 billable?
Yes — R88.8 is billable for FY2027. R88.8 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. R88.8 may be submitted for encounters from October 1, 2026 through September 30, 2027.
R88.8 at a glance
| Code | R88.8 |
|---|---|
| Description | Abnormal findings in other body fluids and substances |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Which MS-DRGs does R88.8 group to?
R88.8 sits in MDC 23 and helps define the logic of 2 MS-DRGs (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.
- 947Signs and Symptoms with MCCmedical
- 948Signs and Symptoms without MCCmedical
How is R88.8 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to R88.8. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Findings, abnormal, inconclusive, without diagnosis › body fluid or substance, specified NEC
- Findings, abnormal, inconclusive, without diagnosis › specified body fluid NEC
Excludes1 — never code together — inherited from R83-R89
The conditions below can never be reported together with R88.8 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- abnormal findings on antenatal screening of mother (O28.-)
- diagnostic abnormal findings classified elsewhere - see Alphabetical Index
Excludes2 — not included here — inherited from Chapter 18
The conditions below are not part of R88.8, but a patient may have both at the same time. When documentation supports it, R88.8 and the excluded code may both be reported.
Excludes2 — not included here — inherited from R83-R89
The conditions below are not part of R88.8, but a patient may have both at the same time. When documentation supports it, R88.8 and the excluded code may both be reported.
How long has R88.8 existed?
R88.8 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.