M34.81 — Systemic sclerosis with lung involvement
Is M34.81 billable?
Yes — M34.81 is billable for FY2027. M34.81 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. M34.81 may be submitted for encounters from October 1, 2026 through September 30, 2027.
M34.81 at a glance
| Code | M34.81 |
|---|---|
| Description | Systemic sclerosis with lung involvement |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Which MS-DRGs does M34.81 group to?
M34.81 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
As a secondary diagnosis, M34.81 is a complication or comorbidity (CC), which can move a stay into a higher-paying DRG.
How is M34.81 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to M34.81. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Sclerosis, sclerotic › systemic › with › lung involvement
- Disease, diseased › lung › in › systemic › sclerosis
Code also
Two codes may be needed to describe the condition fully. Whether M34.81 is sequenced first depends on the reason for the encounter.
Excludes1 — never code together — inherited from M30-M36
The conditions below can never be reported together with M34.81 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- autoimmune disease, single organ or single cell-type -code to relevant condition category
Excludes1 — never code together — inherited from M34
The conditions below can never be reported together with M34.81 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
Excludes2 — not included here — inherited from Chapter 13
The conditions below are not part of M34.81, but a patient may have both at the same time. When documentation supports it, M34.81 and the excluded code may both be reported.
- arthropathic psoriasis (L40.5-)
- certain conditions originating in the perinatal period (P04-P96)
- certain infectious and parasitic diseases (A00-B99)
- compartment syndrome (traumatic) (T79.A-)
- complications of pregnancy, childbirth and the puerperium (O00-O9A)
- congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
- endocrine, nutritional and metabolic diseases (E00-E88)
- injury, poisoning and certain other consequences of external causes (S00-T88)
- neoplasms (C00-D49)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
How long has M34.81 existed?
M34.81 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.