T37.95XD — Adverse effect of unspecified systemic anti-infective and antiparasitic, subsequent encounter
Is T37.95XD billable?
Yes, but T37.95XD is an unspecified code. T37.95XD is a valid, billable ICD-10-CM code for encounters from October 1, 2026 through September 30, 2027. However, T37.95XD is an unspecified or catch-all code. Payers apply additional scrutiny to unspecified codes and many deny them when the medical record supports a more specific option, so check the documentation before selecting T37.95XD — the more specific alternatives are listed below.
More specific alternatives
- T37.0X1DPoisoning by sulfonamides, accidental (unintentional), subsequent encounter
- T37.1X1DPoisoning by antimycobacterial drugs, accidental (unintentional), subsequent encounter
- T37.2X1DPoisoning by antimalarials and drugs acting on other blood protozoa, accidental (unintentional), subsequent encounter
- T37.3X1DPoisoning by other antiprotozoal drugs, accidental (unintentional), subsequent encounter
- T37.4X1DPoisoning by anthelminthics, accidental (unintentional), subsequent encounter
- T37.5X1DPoisoning by antiviral drugs, accidental (unintentional), subsequent encounter
T37.95XD at a glance
| Code | T37.95XD |
|---|---|
| Description | Adverse effect of unspecified systemic anti-infective and antiparasitic, subsequent encounter |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
| 7th character "D" | subsequent encounter |
What does the 7th character "D" mean in T37.95XD?
In T37.95XD, the 7th character D means subsequent encounter. The 7th character is required for T37.95XD to be a valid, complete code.
Same condition, different episode of care — switch the 7th character:
What Medicare edits apply to T37.95XD?
The Medicare Code Editor screens inpatient claims before they are grouped. These edits name T37.95XD directly.
CMS will reject this code as the principal diagnosis on an inpatient claim. It describes something other than the condition chiefly responsible for the admission.
Which MS-DRGs does T37.95XD group to?
T37.95XD 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.
- 949Aftercare with CC/MCCmedical
- 950Aftercare without CC/MCCmedical
Excludes1 — never code together — inherited from T36-T50
The conditions below can never be reported together with T37.95XD on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- toxic reaction to local anesthesia in pregnancy (O29.3-)
Excludes1 — never code together — inherited from T37
The conditions below can never be reported together with T37.95XD 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 T36-T50
The underlying condition below must be sequenced before T37.95XD. T37.95XD describes a manifestation and cannot be the principal or first-listed diagnosis.
Use additional code — inherited from Chapter 19
Report an additional code alongside T37.95XD to fully describe the condition. T37.95XD is sequenced first.
- code to identify any retained foreign body, if applicable (Z18.-)
Use additional code — inherited from T36-T50
Report an additional code alongside T37.95XD to fully describe the condition. T37.95XD is sequenced first.
Excludes2 — not included here — inherited from Chapter 19
The conditions below are not part of T37.95XD, but a patient may have both at the same time. When documentation supports it, T37.95XD and the excluded code may both be reported.
Excludes2 — not included here — inherited from T36-T50
The conditions below are not part of T37.95XD, but a patient may have both at the same time. When documentation supports it, T37.95XD and the excluded code may both be reported.
How long has T37.95XD existed?
T37.95XD 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.