B90.9 — Sequelae of respiratory and unspecified tuberculosis
Is B90.9 billable?
Yes, but B90.9 is an unspecified code. B90.9 is a valid, billable ICD-10-CM code for encounters from October 1, 2026 through September 30, 2027. However, B90.9 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 B90.9 — the more specific alternatives are listed below.
B90.9 at a glance
| Code | B90.9 |
|---|---|
| Description | Sequelae of respiratory and unspecified tuberculosis |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Which MS-DRGs does B90.9 group to?
B90.9 sits in MDC 04 and helps define the logic of 3 MS-DRGs (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.
- 196Interstitial Lung Disease with MCCmedical
- 197Interstitial Lung Disease with CCmedical
- 198Interstitial Lung Disease without CC/MCCmedical
How is B90.9 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to B90.9. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Cicatrix › tuberculous NEC (adherent) (contracted) (painful) (vicious)
- Sequelae › tuberculosis (of)
- Calcification › lung › tuberculous
- Calcification › pleura › tuberculous NEC
- Sequelae › tuberculosis › pulmonary (of)
Inclusion terms
Alternative wording in documentation that is classified to B90.9.
- Sequelae of tuberculosis NOS
Code first — inherited from B90-B94
The underlying condition below must be sequenced before B90.9. B90.9 describes a manifestation and cannot be the principal or first-listed diagnosis.
- condition resulting from (sequela) the infectious or parasitic disease
Use additional code — inherited from Chapter 1
Report an additional code alongside B90.9 to fully describe the condition. B90.9 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 B90.9, but a patient may have both at the same time. When documentation supports it, B90.9 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 B90.9 existed?
B90.9 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.