ICDcodes.org
FY2027

T48.204D — Poisoning by unspecified drugs acting on muscles, undetermined, subsequent encounter

BillableUnspecified

Is T48.204D billable?

Yes, but T48.204D is an unspecified code. T48.204D is a valid, billable ICD-10-CM code for encounters from October 1, 2026 through September 30, 2027. However, T48.204D 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 T48.204D — the more specific alternatives are listed below.

T48.204D at a glance

CodeT48.204D
DescriptionPoisoning by unspecified drugs acting on muscles, undetermined, subsequent encounter
BillableYes
Code setICD-10-CM FY2027
Valid for encountersOctober 1, 2026 – September 30, 2027
7th character "D"subsequent encounter

What does the 7th character "D" mean in T48.204D?

In T48.204D, the 7th character D means subsequent encounter. The 7th character is required for T48.204D to be a valid, complete code.

Same condition, different episode of care — switch the 7th character:

Which MS-DRGs does T48.204D group to?

T48.204D 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 T48.204D 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-)

Code first — inherited from T36-T50

The underlying condition below must be sequenced before T48.204D. T48.204D describes a manifestation and cannot be the principal or first-listed diagnosis.

  • , for adverse effects, the nature of the adverse effect, such as:
  • adverse effect NOS (T88.7)
  • aspirin gastritis (K29.-)
  • blood disorders (D56-D76)
  • contact dermatitis (L23-L25)
  • dermatitis due to substances taken internally (L27.-)
  • nephropathy (N14.0-N14.2)

Use additional code — inherited from Chapter 19

Report an additional code alongside T48.204D to fully describe the condition. T48.204D 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 T48.204D to fully describe the condition. T48.204D is sequenced first.

  • code(s) to specify:
  • manifestations of poisoning
  • underdosing or failure in dosage during medical and surgical care (Y63.6, Y63.8-Y63.9)
  • underdosing of medication regimen (Z91.12-, Z91.13-)

Excludes2 — not included here — inherited from Chapter 19

The conditions below are not part of T48.204D, but a patient may have both at the same time. When documentation supports it, T48.204D and the excluded code may both be reported.

  • birth trauma (P10-P15)
  • obstetric trauma (O70-O71)

Excludes2 — not included here — inherited from T36-T50

The conditions below are not part of T48.204D, but a patient may have both at the same time. When documentation supports it, T48.204D and the excluded code may both be reported.

  • abuse and dependence of psychoactive substances (F10-F19)
  • abuse of non-dependence-producing substances (F55.-)
  • immunodeficiency due to drugs (D84.821)
  • drug reaction and poisoning affecting newborn (P00-P96)
  • pathological drug intoxication (inebriation) (F10-F19)

How long has T48.204D existed?

T48.204D 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.