ICDcodes.org
FY2027

R78.5 — Finding of other psychotropic drug in blood

Billable

Is R78.5 billable?

Yes — R78.5 is billable for FY2027. R78.5 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. R78.5 may be submitted for encounters from October 1, 2026 through September 30, 2027.

R78.5 at a glance

CodeR78.5
DescriptionFinding of other psychotropic drug in blood
BillableYes
Code setICD-10-CM FY2027
Valid for encountersOctober 1, 2026 – September 30, 2027

Which MS-DRGs does R78.5 group to?

R78.5 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 R78.5 listed in the Alphabetic Index?

These are the routes through the Alphabetic Index that lead to R78.5. They show the wording a clinician may have documented, which often differs from the Tabular description.

  • Findings, abnormal, inconclusive, without diagnosis › in blood › psychotropic drug

Use additional code — inherited from R78

Report an additional code alongside R78.5 to fully describe the condition. R78.5 is sequenced first.

  • code to identify any retained foreign body, if applicable (Z18.-)

Excludes2 — not included here — inherited from Chapter 18

The conditions below are not part of R78.5, but a patient may have both at the same time. When documentation supports it, R78.5 and the excluded code may both be reported.

  • abnormal findings on antenatal screening of mother (O28.-)
  • certain conditions originating in the perinatal period (P04-P96)
  • signs and symptoms classified in the body system chapters
  • signs and symptoms of breast (N63, N64.5)

Excludes2 — not included here — inherited from R70-R79

The conditions below are not part of R78.5, but a patient may have both at the same time. When documentation supports it, R78.5 and the excluded code may both be reported.

  • abnormal findings on antenatal screening of mother (O28.-)
  • abnormalities of lipids (E78.-)
  • abnormalities of platelets and thrombocytes (D69.-)
  • abnormalities of white blood cells classified elsewhere (D70-D72)
  • coagulation hemorrhagic disorders (D65-D68)
  • diagnostic abnormal findings classified elsewhere - see Alphabetical Index
  • hemorrhagic and hematological disorders of newborn (P50-P61)

Excludes2 — not included here — inherited from R78

The conditions below are not part of R78.5, but a patient may have both at the same time. When documentation supports it, R78.5 and the excluded code may both be reported.

  • mental or behavioral disorders due to psychoactive substance use (F10-F19)

How long has R78.5 existed?

R78.5 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.

What other codes are in the R78 family? (9)