A27.89 — Other forms of leptospirosis
Is A27.89 billable?
Yes — A27.89 is billable for FY2027. A27.89 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. A27.89 may be submitted for encounters from October 1, 2026 through September 30, 2027.
A27.89 at a glance
| Code | A27.89 |
|---|---|
| Description | Other forms of leptospirosis |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Which MS-DRGs does A27.89 group to?
A27.89 sits in MDC 01 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.
- 023Craniotomy with Major Device Implant or Acute Complex CNS Principal Diagnosis with MCC or Antineoplastic Implant or Epilepsy with Neurostimulatorsurgical
- 024Craniotomy with Major Device Implant or Acute Complex CNS Principal Diagnosis without MCCsurgical
As a secondary diagnosis, A27.89 is a complication or comorbidity (CC), which can move a stay into a higher-paying DRG.
How is A27.89 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to A27.89. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Fort Bragg fever
- Nanukayami
- Fever › Fort Bragg (inanition) (of unknown origin) (persistent) (with chills) (with rigor)
- Fever › pretibial (inanition) (of unknown origin) (persistent) (with chills) (with rigor)
- Fever › seven day (inanition) (of unknown origin) (persistent) (with chills) (with rigor)
- Leptospirosis › canicola
- Leptospirosis › pomona
- Infection, infected, infective › Leptospira interrogans › autumnalis (opportunistic)
- Infection, infected, infective › Leptospira interrogans › canicola (opportunistic)
- Infection, infected, infective › Leptospira interrogans › hebdomadis (opportunistic)
- Infection, infected, infective › Leptospira interrogans › pomona (opportunistic)
- Infection, infected, infective › Leptospira interrogans › specified type NEC (opportunistic)
Use additional code — inherited from Chapter 1
Report an additional code alongside A27.89 to fully describe the condition. A27.89 is sequenced first.
- code to identify resistance to antimicrobial drugs (Z16.-)
Excludes2 — not included here — inherited from Chapter 1
The conditions below are not part of A27.89, but a patient may have both at the same time. When documentation supports it, A27.89 and the excluded code may both be reported.
- carrier or suspected carrier of infectious disease (Z22.-)
- certain localized infections - see body system-related chapters
- infectious and parasitic diseases complicating pregnancy, childbirth and the puerperium (O98.-)
- infectious and parasitic diseases specific to the perinatal period (P35-P39)
- influenza and other acute respiratory infections (J00-J22)
How long has A27.89 existed?
A27.89 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.