S70.321D — Blister (nonthermal), right thigh, subsequent encounter
Is S70.321D billable?
Yes — S70.321D is billable for FY2027. S70.321D is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. S70.321D may be submitted for encounters from October 1, 2026 through September 30, 2027.
S70.321D at a glance
| Code | S70.321D |
|---|---|
| Description | Blister (nonthermal), right thigh, subsequent encounter |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
| 7th character "D" | subsequent encounter |
What does the 7th character "D" mean in S70.321D?
In S70.321D, the 7th character D means subsequent encounter. The 7th character is required for S70.321D to be a valid, complete code.
Same condition, different episode of care — switch the 7th character:
Which MS-DRGs does S70.321D group to?
S70.321D 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
How is S70.321D listed in the Alphabetic Index?
The Alphabetic Index lists these routes under S70.32, the nearest indexed parent of S70.321D. Use them to find the family, then select the specific code.
- Blister › thigh (nonthermal)
Use additional code — inherited from Chapter 19
Report an additional code alongside S70.321D to fully describe the condition. S70.321D is sequenced first.
- code to identify any retained foreign body, if applicable (Z18.-)
Excludes2 — not included here — inherited from Chapter 19
The conditions below are not part of S70.321D, but a patient may have both at the same time. When documentation supports it, S70.321D and the excluded code may both be reported.
Excludes2 — not included here — inherited from S70-S79
The conditions below are not part of S70.321D, but a patient may have both at the same time. When documentation supports it, S70.321D and the excluded code may both be reported.
How long has S70.321D existed?
S70.321D 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.